Republic v. Manahan

Chapter III, Original Registration (P.D. 1529, Sec. 14(1), as amended by R.A. No. 11573, Secs. 6-7) — 3.1.A.a.i.1.c, Requisites for Confirmation of Title under Sec. 14(1): Third Requisite (OCEN Possession Under a Bona Fide Claim of Ownership Since June 12, 1945 or Earlier)

Subject Home

16px

←Previous: Padayao v. Villafuerte, Jr.Previous case

Primary source ↗Next: Neri v. BahintingNext case→

Title

Republic v. Manahan

Case Decision Date

G.R. No. 255266 April 21, 2025

This case is DIRECT to the Topic/Subtopic on the June 12, 1945 possession requisite. Eduardo Manahan applied for original registration of three small San Mateo, Rizal lots, inherited through a chain of waivers from original owner Mariano Manahan and ultimately sold to him in 2002. He traced possession through tax declarations dating to 1948 and testimony that Filomena, born in 1907, had supervised the lots' rice cultivation since before he was ten, corroborated by a neighbor. The MTC and CA both granted registration, finding alienability (via a CENRO certification referencing a 1927 classification map) and pre-1945 possession established. The Republic petitioned, and while pending, Republic Act No. 11573 took effect. The Supreme Court affirmed that Eduardo's evidence sufficiently proved open, continuous, exclusive, and notorious possession under a bona fide claim of ownership for the twenty years immediately preceding his 2004 application — RA 11573 Section 6's now-controlling standard, comfortably met by possession since 1948 — but found the CENRO Certification, unauthenticated by its issuing officer, insufficient to prove alienability, and remanded for evidence conforming to Section 7's DENR-geodetic-engineer-certification standard.

Core Doctrine

Tax declarations spanning decades are good indicia of possession in the concept of owner; regular cultivation, with proof of its nature and extent, is an act of dominion satisfying possession and occupation. A CENRO or PENRO certification on land classification is hearsay absent testimony from its issuing officer; historically, a certified true copy of the approving authority's original classification was additionally required. Under RA 11573 Section 7, as elaborated in Pasig Rizal Co., a DENR geodetic engineer's sworn certification imprinted on the survey plan, authenticated by testimony, now suffices — a surveyor's mere notation does not.

Case Digest (G.R. No. 255266)

Case DigestWeek 3–4 — The Registries of Deeds and Original Registration

Republic v. Manahan

G.R. No. 255266 · April 21, 2025 · Supreme Court — Third Division

Gist

Core Doctrine

Facts

In 2004, Eduardo filed with the MTC an application for registration of three small lots in Barangay Guitnang Bayan, San Mateo, Rizal, which he had acquired in 2002 from Lourdes Manahan after a chain of intra-family waivers traced back to original owner Mariano Manahan.
Eduardo presented tax declarations dating to 1948 in Mariano's name, and testified that Filomena — who treated him as a son — had him accompany her from age ten in supervising the lots' rice cultivation, yielding roughly six sacks per harvest.
Neighbor Diestro, a registered co-owner of the adjoining, Torrens-titled Lot No. 231, corroborated that the Manahans had cultivated the lots since Mariano's time.
To prove alienability, Eduardo presented DENR geodetic engineer Legaspi, who prepared an Advance Plan annotated as within alienable and disposable land per Land Classification Map No. 639, certified March 11, 1927, together with CENRO and PENRO Certifications repeating that classification.
The MTC's December 6, 2011 Decision granted the application, finding possession since 1949 and alienability both established.
The Republic appealed, and the CA's March 2, 2020 Decision affirmed in toto, crediting the CENRO Certification's presumption of regularity for alienability and Filomena's 1907 birth plus testimony for possession since 1945 or earlier.
The Republic's motion for reconsideration was denied, and it filed this Rule 45 petition.
While pending, Republic Act No. 11573 took effect on September 1, 2021.

Arguments of the Parties

Petitioner. The Republic argued unregistered land is presumed State-owned and Eduardo bore the burden of proving a positive act of declassification; the CENRO Certification alone, without a certified copy of the DENR Secretary's original classification, was insufficient under Republic v. T.A.N. Properties, Inc.; and Eduardo's tax declarations placed possession only from 1948, while Diestro never specified when the Manahans first acquired possession or what acts of ownership they exercised.

Respondent. Eduardo argued DAO No. 2012-09 now authorizes CENRO to issue land-classification certifications, rendering T.A.N. Properties — decided before that order — inapplicable, and that Land Classification Map No. 639 was already judicially recognized in Republic v. Javier; cultivation since "time immemorial," corroborated by Diestro, plus the fact that Filomena and her siblings were all born before 1945, together proved possession from before that date.

Common Ground / Stipulations (if any). Both sides accepted Eduardo's documented chain of title from Mariano through successive waivers to the 2002 sale, and neither disputed the lots were free of any existing certificate of title or patent.

Issue

MAIN ISSUE (Topic/Subtopic-Centered). Whether Eduardo sufficiently proved that he, by himself and through his predecessors-in-interest, had been in open, continuous, exclusive, and notorious possession and occupation of the subject lots under a bona fide claim of ownership for the period required under Section 14(1), as amended by Republic Act No. 11573.

SECONDARY ISSUES. Whether Eduardo sufficiently proved the subject lots had been declared alienable and disposable at any time before he filed his Application.

ANCILLARY / INCIDENTAL ISSUES (if any). What disposition follows where the possession requirement is satisfied but the alienability proof is not.

Ruling

On the MAIN ISSUE: YES — tax declarations from 1948, fifty-six years before the 2004 application, corroborated by testimony on continuous cultivation and public assertion of ownership, satisfied RA 11573 Section 6's twenty-year standard: open (publicly declared for taxation), continuous (unbroken from 1948), exclusive (the Manahans alone benefited), and notorious (recognized by neighbors like Diestro). Secondary issue: NO — the CENRO Certification was hearsay since the issuing official was never presented to authenticate it, and, even considered, no certified copy of the historical approving authority's original classification was submitted; the Advance Plan's notation by Engr. Legaspi likewise did not suffice, being a mere notation rather than the sworn certification Section 7 now requires. Ancillary issue: given RA 11573's curative purpose, remand rather than outright denial is proper. The dispositive portion reads verbatim: "ACCORDINGLY, the Petition for Review on Certiorari filed by the Republic of the Philippines is DENIED in part. The Decision dated March 2, 2020, and the Resolution dated December 10, 2020... are AFFIRMED insofar as they held that Eduardo Manahan, by himself and through his predecessors-in-interest, has been in open, continuous, exclusive, and notorious possession and occupation of the subject lots under a bona fide claim of ownership since 1948. The case is REMANDED to the Court of Appeals for reception of evidence on the subject lots' land classification status based on the parameters set forth in Section 7 of Republic Act No. 11573 and its implementing rules and regulations. Thereafter, the Court of Appeals is DIRECTED to resolve the present case in accordance with this Decision with due and deliberate dispatch. SO ORDERED."

Ratio

The Court reiterated the settled test — possession is open when "patent... not clandestine," continuous when "uninterrupted," exclusive when showing "exclusive dominion," and notorious when "so conspicuous that it is generally known and talked of" — finding all four satisfied since the tax declarations "serve as proof that as early as 1948, or 56 years prior to the filing of the Application... Eduardo and his predecessors-in-interest have been in possession and occupation of the subject lots under a bona fide claim of ownership," because "no one in their right mind would be paying taxes for a property that is not in their actual or at least constructive possession."
On alienability, the Court held CENRO certifications "must be identified by the government officials who issued them; otherwise, their contents are hearsay," and here "it was only Eduardo who identified the CENRO Certification during trial," rendering him "incompetent to testify on the facts stated" since he neither prepared it nor conducted the verification survey.
The Advance Plan likewise failed, being a "notation, not a certification, by the geodetic engineer," since "a surveyor has no authority to reclassify lands of the public domain."

Doctrine

Doctrines / Rules / Principles Laid Down.

Tax declarations spanning decades are good indicia of possession in the concept of owner; regular cultivation, with proof of its nature and extent, is an act of dominion satisfying possession and occupation.
A CENRO or PENRO certification on land classification is hearsay absent testimony from its issuing officer; historically, a certified true copy of the approving authority's original classification was additionally required.
Under RA 11573 Section 7, as elaborated in Pasig Rizal Co., a DENR geodetic engineer's sworn certification imprinted on the survey plan, authenticated by testimony, now suffices — a surveyor's mere notation does not.

Distinctions / Limitations / Qualifications.

Unlike cases where RA 11573's twenty-year period mooted the entire 1945-versus-later dispute because possession was undisputedly long, here the Court still had to adjudicate whether the shorter 1948-to-2004 gap independently cleared the new twenty-year floor, affirmatively finding that it did — confirming RA 11573 also benefits applicants whose possession falls a few years short of 1945, so long as it independently satisfies the shortened period.

Topic/Subtopic Integration (Mandatory).

DIRECT: the Court squarely and affirmatively resolved the sufficiency of the applicant's OCEN possession evidence under the RA 11573-amended Third Requisite, even though the alienability prong required remand.

Separate Opinions

None. Caguioa (Chairperson), Gaerlan, and Dimaampao, JJ., concurred; Singh, J., was on leave.

Full Digest — Recitation Format

Full-length digest in the format required by the course digest prompt.

Classification: DIRECT · G.R. No. 255266, April 21, 2025

TOPIC/SUBTOPIC FOCUS: No. 141, the Public Land Act, and P.D. No. 1529, the Property Registration Decree, Republic Act No. 11573, July 16, 2021

I. Gist and Central Doctrine

The relationship of the case of Republic v. Manahan, G.R. No. 255266, April 21, 2025, to the assigned topic of the citizenship and possessory requirements for land registration under Section 14, paragraph 1 of Presidential Decree No. 1529 is DIRECT. The triggering controversy arose when Respondent Eduardo Manahan filed an Application for original land registration before the Municipal Trial Court of San Mateo, Rizal, seeking the confirmation and registration of title over three parcels of land in San Mateo, Rizal, which Application was opposed by Petitioner Republic on the ground that Respondent Eduardo Manahan failed to prove the required possession and the alienable and disposable character of the subject lots. The Supreme Court of the Philippines denied the Petition for Review on Certiorari filed by Petitioner Republic in part, affirming the findings of the Court of Appeals that Respondent Eduardo Manahan, personally and through the predecessors-in-interest of Respondent Eduardo Manahan, had been in open, continuous, exclusive, and notorious possession and occupation of the subject lots in the concept of owner since 1948. The Supreme Court of the Philippines, however, remanded the case to the Court of Appeals for the reception of additional evidence regarding the land classification status of the subject lots based on the parameters set forth in Section 7 of Republic Act No. 11573. The Supreme Court of the Philippines ruled that Section 6 of Republic Act No. 11573, which retroactively amends Section 14, paragraph 1 of Presidential Decree No. 1529, shortens the required period of adverse possession under a bona fide claim of ownership from possession since June 12, 1945, or earlier, to a period of at least twenty years immediately preceding the filing of the application for confirmation of title, while Section 7 of the same Act simplifies the nature of proof required to establish the alienable and disposable status of public land.

II. Chronological Narration of Material Facts

On March 11, 1927, the subject lots, consisting of Lot No. 320, Lot No. 4500, and Lot No. 4526 located in Barrio Guitnang Bayan, San Mateo, Rizal, were declared alienable and disposable agricultural lands of the public domain per the Land Classification map.
Sometime before the year 1945, predecessors-in-interest of Respondent Eduardo Manahan, namely Angelina, Antonino, Augusto, Filomena, and Lourdes, were born, with Filomena Sta. Maria Manahan being born in the year 1907.
Sometime during the youth of Respondent Eduardo Manahan, Respondent Eduardo Manahan accompanied Filomena Sta. Maria Manahan in supervising the planting of crops on the subject lots, which planting of crops occurred since Respondent Eduardo Manahan was ten years old.
In the year 1948, Mariano Manahan declared the subject lots for taxation purposes and claimed ownership and possession of the subject lots, using the subject lots as rice fields and for other agricultural purposes.
From the year 1948 to the year 2004, the Manahan family continuously, openly, and exclusively paid the real property taxes due on the subject lots and utilized the subject lots for agricultural cultivation, receiving shares of the crop harvest for the use and benefit of the Manahan family.
In the year 2004, Respondent Eduardo Manahan filed the Application for original land registration with the Municipal Trial Court of San Mateo, Rizal, docketed as Land Registration Case No. 085-04, praying for the confirmation and registration of title over the subject lots directly in the name of Respondent Eduardo Manahan.
Sometime during the trial, Respondent Eduardo Manahan submitted a Certification from the Community Environment and Natural Resources Office stating that the subject lots were alienable and disposable since March 11, 1927.
On December 6, 2011, the Municipal Trial Court of San Mateo, Rizal, rendered a Decision granting the Application of Respondent Eduardo Manahan, confirming the title over the subject lots under Presidential Decree No. 1529.
Petitioner Republic, through the Office of the Solicitor General, appealed the Decision of the Municipal Trial Court to the Court of Appeals.
On March 2, 2020, the Court of Appeals First Division rendered a Decision dismissing the appeal of Petitioner Republic and affirming the Decision of the Municipal Trial Court in toto.
Petitioner Republic filed a motion for reconsideration of the Decision of the Court of Appeals.
On December 10, 2020, the Court of Appeals denied the motion for reconsideration filed by Petitioner Republic.
Petitioner Republic subsequently elevated the case to the Supreme Court of the Philippines via a Petition for Review on Certiorari under Rule 45 of the Rules of Court.
On September 1, 2021, while the Petition for Review on Certiorari was pending before the Supreme Court, Republic Act No. 11573 officially took effect.
On April 21, 2025, the Supreme Court of the Philippines Third Division promulgated the Decision denying the Petition of Petitioner Republic in part, affirming the findings of possession, and remanding the case to the Court of Appeals for the reception of land classification evidence under Republic Act No. 11573.

III. Arguments of the Parties

A. Petitioner/Prosecution:

Petitioner Republic argues that Respondent Eduardo Manahan failed to present sufficient evidence of open, continuous, exclusive, and notorious possession and occupation of the subject lots in the concept of an owner since June 12, 1945, or earlier, as required by the old Section 14, paragraph 1 of Presidential Decree No. 1529.
Petitioner Republic contends that based on the tax declarations submitted in the land registration proceedings, Mariano Manahan claimed ownership and possession of the subject lots only in the year 1948, which is after the mandatory statutory cut-off date of June 12, 1945.
Petitioner Republic asserts that the testimony of witness Marilyn Diestro is insufficient and should not have been given weight by the lower courts because Marilyn Diestro failed to specify the exact date when the Manahans first acquired possession of the subject lots and failed to identify the specific acts of ownership exercised over the subject lots.
Petitioner Republic maintains that under the rules established in Republic v. T.A.N. Properties, Inc. and Republic v. Hanover Worldwide Trading Corp., the applicant must present a copy of the original land classification approved by the Secretary of the Department of Environment and Natural Resources, certified as a true copy by the legal custodian of the official records, which Respondent Eduardo Manahan failed to do.

B. Respondent/Defense:

Respondent Eduardo Manahan argues that the Manahan family had been in actual, open, continuous, and exclusive possession and occupation of the subject lots in the concept of owner since time immemorial, as corroborated by the testimony of Marilyn Diestro.
Respondent Eduardo Manahan contends that the fact that predecessors-in-interest, namely Angelina, Antonino, Augusto, Filomena, and Lourdes, were all born prior to the year 1945 proves the possession of the property before the statutory cut-off date.
Respondent Eduardo Manahan asserts that the cultivation and planting of crops on the subject lots by Filomena Sta. Maria Manahan, which Respondent Eduardo Manahan witnessed and assisted in since Respondent Eduardo Manahan was ten years old, constitutes clear, physical acts of dominion.
Respondent Eduardo Manahan maintains that the Certification issued by the Community Environment and Natural Resources Office, which carries the presumption of regularity, sufficiently proves that the subject lots were classified as alienable and disposable as early as March 11, 1927.

C. Common Ground:

Both Petitioner Republic and Respondent Eduardo Manahan do not dispute that the subject lots consist of Lot No. 320, Lot No. 4500, and Lot No. 4526, situated in Barrio Guitnang Bayan, San Mateo, Rizal, with a total combined area of eight thousand sixteen square meters.
The parties do not contest that the Municipal Trial Court granted the Application on December 6, 2011, and that the Court of Appeals affirmed the grant on March 2, 2020.
The parties agree that Republic Act No. 11573 was enacted and took effect during the pendency of the appeal before the Supreme Court of the Philippines.

IV. Issues

A. MAIN ISSUE:

Whether the possessory and land classification requirements under Section 14, paragraph 1 of Presidential Decree No. 1529, as amended by Section 6 of Republic Act No. 11573, apply retroactively to land registration cases pending as of September 1, 2021, and whether Respondent Eduardo Manahan sufficiently proved the required possession of the subject lots under the amended law.

B. SECONDARY ISSUES:

Whether Respondent Eduardo Manahan sufficiently proved that the subject lots are alienable and disposable lands of the public domain in accordance with the evidentiary standards set by Section 7 of Republic Act No. 11573.
Whether the lack of a certified true copy of the original land classification approved by the Secretary of the Department of Environment and Natural Resources can be cured by a remand of the case to the Court of Appeals for the reception of additional evidence under Section 7 of Republic Act No. 11573.

V. Ruling / Disposition

A. RULING ON THE MAIN ISSUE:

YES. The Supreme Court of the Philippines ruled that Section 14, paragraph 1 of Presidential Decree No. 1529, as amended by Section 6 of Republic Act No. 11573, applies retroactively to all land registration cases pending as of September 1, 2021, because Republic Act No. 11573 is curative in nature. Under the amended Section 14, paragraph 1, the applicant is no longer required to prove possession since June 12, 1945, or earlier; instead, the applicant must prove open, continuous, exclusive, and notorious possession and occupation of alienable and disposable land of the public domain under a bona fide claim of ownership for at least twenty years immediately preceding the filing of the application. The Supreme Court held that Respondent Eduardo Manahan successfully established the required possession. The testimonial and documentary evidence proved that the Manahan family had been in actual, open, continuous, exclusive, and notorious possession of the subject lots since at least the year 1948, which translates to fifty-six years of possession prior to the filing of the Application in the year 2004—far exceeding the shortened twenty-year statutory requirement.

B. RULING ON SECONDARY ISSUE NO. 1:

NO. The Supreme Court of the Philippines ruled that the evidence presented by Respondent Eduardo Manahan is insufficient to establish the alienable and disposable status of the subject lots under the newly enacted guidelines. Although the CENRO Certification indicated that the subject lots were alienable and disposable since the year 1927, the Supreme Court held that under Section 7 of Republic Act No. 11573 and the guidelines in Republic v. Pasig Rizal Co., Inc., the applicant must present a certification signed and sworn to by a designated geodetic engineer of the Department of Environment and Natural Resources imprinted directly on the approved survey plan. Because the evidence of Respondent Eduardo Manahan consisted of old CENRO/PENRO certifications without the mandatory imprinted geodetic engineer's certification and sworn statement, the alienability of the land was not proven in accordance with the strict parameters of Section 7 of Republic Act No. 11573.

C. RULING ON SECONDARY ISSUE NO. 2:

YES. The Supreme Court of the Philippines ruled that in the interest of substantial justice, the lack of proper land classification evidence can be cured by remanding the case to the Court of Appeals. The Supreme Court held that since Respondent Eduardo Manahan already successfully established the possessory requirement of at least twenty years under the new Section 14, paragraph 1, the Supreme Court deemed the remand of the case to the Court of Appeals proper for the sole purpose of allowing Respondent Eduardo Manahan to present additional evidence on the land classification status in accordance with Section 7 of Republic Act No. 11573. This remand aligns with the state policy to simplify land registration proceedings and provide land tenure security.

VERBATIM DISPOSITIVE PORTION: The Supreme Court of the Philippines' final dispositive portion in G.R. No. 255266 is quoted verbatim as follows:

"ACCORDINGLY, the Petition for Review on Certiorari filed by the Republic of the Philippines is DENIED in part.

The Decision dated March 2, 2020, and the Resolution dated December 10, 2020, respectively rendered by the First Division and Former First Division of the Court of Appeals in CA-G.R. CV No. 102713 are AFFIRMED insofar as they held that Eduardo Manahan, by himself and through his predecessors-in-interest, has been in open, continuous, exclusive, and notorious possession and occupation of the subject lots under a bona fide claim of ownership since 1948.

The case is REMANDED to the Court of Appeals for reception of evidence on the subject lots' land classification status based on the parameters set forth in Section 7 of Republic Act No. 11573 and its implementing rules and regulations. Thereafter, the Court of Appeals is DIRECTED to resolve the present case in accordance with this Decision with due and deliberate dispatch.

SO ORDERED."

VI. Ratio Decidendi and Doctrines

A. Ratio Decidendi:

The Curative Nature and Retroactive Application of Republic Act No. 11573: Under the principles of statutory construction, while laws generally have no retroactive effect, an exception arises when the statute is curative or remedial in nature. Section 1 of Republic Act No. 11573 declares the policy of the State to simplify, update, and harmonize land registration laws, and to remove ambiguity in the interpretation of land registration laws. By shortening the period of adverse possession required for confirmation of title to twenty years, Section 6 of Republic Act No. 11573 creates a new right in favor of land possessors. The retroactive application of this shortened period does not impair vested rights; instead, the retroactive application confirms the title of applicants whose ownership already existed prior to the enactment of the law. Therefore, the Supreme Court of the Philippines, relying on the En Banc precedent in Republic v. Pasig Rizal Co., Inc., held that the shortened twenty-year period applies retroactively to all land registration cases pending as of September 1, 2021, including the case of Respondent Eduardo Manahan.
The Substantive Shift in the Possessory Reckoning Period: Under the old Section 14, paragraph 1 of Presidential Decree No. 1529 and Section 48, paragraph b of Commonwealth Act No. 141, applicants were required to prove open, continuous, exclusive, and notorious possession and occupation of alienable public lands since June 12, 1945, or earlier. This arbitrary date often presented an insurmountable evidentiary barrier for legitimate possessors. The amendment under Section 6 of Republic Act No. 11573 replaced the June 12, 1945 cut-off date with a rolling possessory period of at least twenty years immediately preceding the filing of the application for confirmation of title. In the case of Respondent Eduardo Manahan, although the possession of the Manahan family commenced only in the year 1948 (thereby failing the old June 12, 1945 standard), the possession spanned fifty-six years prior to the filing of the Application in the year 2004, which more than satisfies the amended twenty-year requirement.
The High Evidentiary Threshold for Land Classification Proof: Pursuant to the Regalian doctrine, all lands of the public domain belong to the State, and any person seeking land registration carries the burden to prove that the land is alienable and disposable. While the Court of Appeals accepted the CENRO Certification under the presumption of regularity, the Supreme Court of the Philippines emphasized that the strict rules in Pasig Rizal Co., Inc. and Section 7 of Republic Act No. 11573 have superseded older methods of proving land classification. Section 7 requires a geodetic engineer's signed certification and sworn statement imprinted directly on the survey plan. Because the evidence of Respondent Eduardo Manahan lacked these technical specifications, the land classification was not legally established, prompting the necessity of a remand.
The Policy of Land Tenure Security and Avoidance of Multiplicity of Suits: Under Section 1 of Republic Act No. 11573, the State is mandated to provide land tenure security by continuing judicial and administrative titling processes. To dismiss the Application of Respondent Eduardo Manahan entirely due to a technical evidentiary defect in land classification—despite having fully proved fifty-six years of adverse possession—would run counter to the curative intent of the legislature. A complete dismissal would force Respondent Eduardo Manahan to file a new application, incurring unnecessary expenses and wasting judicial resources. Consequently, a remand to the Court of Appeals for the sole reception of land classification evidence under Section 7 of Republic Act No. 11573 is the most equitable and legally sound remedy.

B. Doctrines/Rules:

The Pasig Rizal/Manahan Curative Rule: Section 6 of Republic Act No. 11573, which amends Section 14, paragraph 1 of Presidential Decree No. 1529, applies retroactively to all pending land registration applications as of September 1, 2021. An applicant qualifies for original land registration by proving open, continuous, exclusive, and notorious possession and occupation of alienable and disposable agricultural land of the public domain under a bona fide claim of ownership for at least twenty (20) years immediately preceding the filing of the application, replacing the old June 12, 1945 possessory cut-off date.
The Geodetic Engineer Certification Standard: Under Section 7 of Republic Act No. 11573, a duly signed certification by a designated geodetic engineer of the Department of Environment and Natural Resources, imprinted directly on the approved survey plan, is sufficient proof of the land's alienable and disposable status. The imprinted certification must contain a sworn statement by the geodetic engineer that the land is within the alienable and disposable lands of the public domain, specifying the applicable Forestry Administrative Order, Executive Order, Proclamation, or Land Classification Project Map Number.

C. Limitations/Exceptions:

The Twelve-Hectare Area Limitation: Under the amended Section 14, paragraph 1 of Presidential Decree No. 1529, the right to apply for original land registration is strictly limited to land not exceeding twelve (12) hectares in area.
Prior State Use Exception: The simplified rule that the classification of public land as alienable and disposable immediately converts the property into patrimonial land susceptible to acquisitive prescription does not apply to lands that were previously utilized by the State for some public purpose or public service. In such cases, proof of conversion requires an express government manifestation of abandonment or withdrawal from the public dominion.

D. Topic Integration:

Republic v. Manahan is a direct application of the Pasig Rizal doctrine, demonstrating how the transition from the old June 12, 1945 possessory requirement to the new twenty-year possessory period under Section 14, paragraph 1 of Presidential Decree No. 1529 operates in practice. The decision highlights that while the possessory threshold has been significantly relaxed and simplified to protect the land tenure of long-term occupants, the evidentiary standard for proving the land's alienable and disposable character remains strict and must comply with the precise geodetic engineering certification required under Section 7 of Republic Act No. 11573. Thus, the case integrates the curative intent of the legislature with the judicial duty to protect the Regalian domain from fraudulent registrations.

VII. Separate Opinions

NONE. The decision of the Supreme Court of the Philippines in G.R. No. 255266 was rendered unanimously by the Third Division, with no separate concurring or dissenting opinions filed by the participating Justices.

Cited Laws & Provisions

Every statute, rule, and issuance the decision turns on — the text as written, and the work it does in this case.

Special Law

Section 6, R.A. No. 11573

Republic Act No. 11573 (2021) — An Act Improving the Confirmation Process for Imperfect Land Titles

Section 14 of Presidential Decree No. 1529 is hereby amended to read as follows:

“SECTION 14. Who may apply. The following persons may file at any time, in the proper Regional Trial Court in the province where the land is located, an application for registration of title to land, not exceeding twelve (12) hectares, whether personally or through their duly authorized representatives:

“(1) Those who by themselves or through their predecessors-in-interest have been in open, continuous, exclusive and notorious possession and occupation of alienable and disposable lands of the public domain not covered by existing certificates of title or patents under a bona fide claim of ownership for at least twenty (20) years immediately preceding the filing of the application for confirmation of title except when prevented by war or force majeure. They shall be conclusively presumed to have performed all the conditions essential to a Government grant and shall be entitled to a certificate of title under this section.

“(2) Those who have acquired ownership of private lands or abandoned riverbeds by right of accession or accretion under the provisions of existing laws.

“(3) Those who have acquired ownership of land in any other manner provided for by law.

“Where the land is owned in common, all the co-owners shall file the application jointly.

“Where the land has been sold under pacto de retro, the vendor a retro may file an application for the original registration of the land: Provided, however, That should the period for redemption expire during the pendency of the registration proceedings and ownership to the property consolidated in the vendee a retro, the latter shall be substituted for the applicant and may continue the proceedings.

“A trustee on behalf of the principal may apply for original registration of any land held in trust by the trustee, unless prohibited by the instrument creating the trust.”

Why it is cited here

The possession standard the applicant satisfied, and a clean worked example of how the twenty-year window is counted.

The section requires possession "for at least twenty (20) years immediately preceding the filing of the application." Eduardo applied in 2004; the operative window is therefore 1984 to 2004. His tax declarations reach 1948 and the testimony of cultivation reaches further still, so the requirement is met with decades to spare.

Two points the example makes vividly. The window is counted backwards from the filing, not forwards from any fixed date — so the arithmetic changes with every application. And what matters is that the twenty years be continuous and immediately prior; earlier possession is welcome corroboration but is not itself the qualifying period.

Note what has become of the Republic's original argument. It contested 1945 possession; under the amendment that contest is beside the point, and the case turned instead on alienability — the recurring pattern in the post-Pasig Rizal line.

Special Law

Section 7, R.A. No. 11573

Proof that the Land is Alienable and Disposable

Republic Act No. 11573 (2021) — An Act Improving the Confirmation Process for Imperfect Land Titles

For purposes of judicial confirmation of imperfect titles filed under Presidential Decree No. 1529, a duly signed certification by a duly designated DENR geodetic engineer that the land is part of alienable and disposable agricultural lands of the public domain is sufficient proof that the land is alienable. Said certification shall be imprinted in the approved survey plan submitted by the applicant in the land registration court. The imprinted certification in the plan shall contain a sworn statement by the geodetic engineer that the land is within the alienable and disposable lands of the public domain and shall state the applicable Forestry Administrative Order, DENR Administrative Order, Executive Order, Proclamations and the Land Classification Project Map Number covering the subject land.

Should there be no available copy of the Forestry Administrative Order, Executive Order or Proclamation, it is sufficient that the Lad Classification (LC) Map Number, Project Number, and date of release indicated in the land classification map be stated in the sworn statement declaring that said land classification map is existing in the inventory of LC Map records of the National Mapping and Resource Information Authority (NAMRIA) and is being used by the DENR as land classification map.

Why it is cited here

The provision that defeated an otherwise successful application, and the reason for the remand.

Alienability is proved by "a duly signed certification by a duly designated DENR geodetic engineer," imprinted in the approved survey plan, carrying the engineer's sworn statement and citing the applicable administrative order or proclamation and the Land Classification Project Map Number.

Eduardo offered a CENRO Certification referencing a 1927 classification map — the standard practice for decades. It failed on two independent grounds: it was not issued by a DENR-designated geodetic engineer, and it was not authenticated by its issuing officer, making it hearsay as to its contents.

The authentication point is easy to overlook and worth holding onto. A certification is a private document as to the applicant until the officer who issued it testifies or the copy is properly certified; simply marking it in evidence proves the paper exists, not what it says.

Because the defect is one of proof rather than merit, the Court remanded under the Pasig Rizal Co. guidelines rather than dismissing — the applicant gets the chance to produce conforming evidence.

Special Law

Section 14, P.D. No. 1529

Who may apply

Presidential Decree No. 1529 (Property Registration Decree, 1978)

The following persons may file in the proper Court of First Instance an application for registration of title to land, whether personally or through their duly authorized representatives:

(1) Those who by themselves or through their predecessors-in-interest have been in open, continuous, exclusive and notorious possession and occupation of alienable and disposable lands of the public domain under a bona fide claim of ownership since June 12, 1945, or earlier.

(2) Those who have acquired ownership of private lands by prescription under the provision of existing laws.

(3) Those who have acquired ownership of private lands or abandoned river beds by right of accession or accretion under the existing laws.

(4) Those who have acquired ownership of land in any other manner provided for by law.

Where the land is owned in common, all the co-owners shall file the application jointly.

Where the land has been sold under pacto de retro, the vendor a retro may file an application for the original registration of the land, provided, however, that should the period for redemption expire during the pendency of the registration proceedings and ownership to the property consolidated in the vendee a retro, the latter shall be substituted for the applicant and may continue the proceedings.

A trustee on behalf of his principal may apply for original registration of any land held in trust by him, unless prohibited by the instrument creating the trust.

Rewritten in 2021 — and this 2025 decision applies the new text. R.A. No. 11573 replaced paragraph (1): the "since June 12, 1945, or earlier" anchor quoted here is gone, replaced by a requirement of at least twenty (20) years of open, continuous, exclusive and notorious possession immediately preceding the application. Read this entry for the historical requirement and ra-11573-sec-6 for the operative one.

Why it is cited here

The provision the whole original-registration syllabus is built on.

"The following persons may file in the proper Court of First Instance an application for registration of title to land … (1) Those who by themselves or through their predecessors-in-interest have been in open, continuous, exclusive and notorious possession and occupation of alienable and disposable lands of the public domain under a bona fide claim of ownership since June 12, 1945, or earlier."

Manahan applied to register three parcels in San Mateo, Rizal under paragraph (1).

Two elements do the work, and applicants routinely prove only the first. The possession must be open, continuous, exclusive and notorious for the statutory period — and the land must be alienable and disposable, which is a matter of the State's own classification, not of how long anyone has occupied it.

Possession of inalienable land, however ancient, registers nothing. That is the Regalian principle running underneath the section, and it is why Palomo, Alsons Cement and Director of Forestry all turn on classification rather than on occupancy.

Note the paragraph's structure too: (2) prescription over private land, (3) accession and abandoned river beds, (4) any other manner provided by law. Only (1) concerns the public domain.

Source: Republic v. Manahan, G.R. No. 255266, April 21, 2025

Cited laws & provisions

Section 6, R.A. No. 11573

Special Law

Republic Act No. 11573 (2021) — An Act Improving the Confirmation Process for Imperfect Land Titles

Section 14 of Presidential Decree No. 1529 is hereby amended to read as follows:

“(2) Those who have acquired ownership of private lands or abandoned riverbeds by right of accession or accretion under the provisions of existing laws.

“(3) Those who have acquired ownership of land in any other manner provided for by law.

“Where the land is owned in common, all the co-owners shall file the application jointly.

“A trustee on behalf of the principal may apply for original registration of any land held in trust by the trustee, unless prohibited by the instrument creating the trust.”

Why it is cited here

The possession standard the applicant satisfied, and a clean worked example of how the twenty-year window is counted.

Full entry below ↓

Section 7, R.A. No. 11573

Special Law

Proof that the Land is Alienable and Disposable

Republic Act No. 11573 (2021) — An Act Improving the Confirmation Process for Imperfect Land Titles

Why it is cited here

The provision that defeated an otherwise successful application, and the reason for the remand.

Full entry below ↓

Section 14, P.D. No. 1529

Special Law

Who may apply

Presidential Decree No. 1529 (Property Registration Decree, 1978)

The following persons may file in the proper Court of First Instance an application for registration of title to land, whether personally or through their duly authorized representatives:

(2) Those who have acquired ownership of private lands by prescription under the provision of existing laws.

(3) Those who have acquired ownership of private lands or abandoned river beds by right of accession or accretion under the existing laws.

(4) Those who have acquired ownership of land in any other manner provided for by law.

Where the land is owned in common, all the co-owners shall file the application jointly.

A trustee on behalf of his principal may apply for original registration of any land held in trust by him, unless prohibited by the instrument creating the trust.

Why it is cited here

The provision the whole original-registration syllabus is built on.

Manahan applied to register three parcels in San Mateo, Rizal under paragraph (1).

Note the paragraph's structure too: (2) prescription over private land, (3) accession and abandoned river beds, (4) any other manner provided by law. Only (1) concerns the public domain.

Full entry below ↓

Facts

In 2004, Eduardo filed with the MTC an application for registration of three small lots in Barangay Guitnang Bayan, San Mateo, Rizal, which he had acquired in 2002 from Lourdes Manahan after a chain of intra-family waivers traced back to original owner Mariano Manahan.
Eduardo presented tax declarations dating to 1948 in Mariano's name, and testified that Filomena — who treated him as a son — had him accompany her from age ten in supervising the lots' rice cultivation, yielding roughly six sacks per harvest.
Neighbor Diestro, a registered co-owner of the adjoining, Torrens-titled Lot No. 231, corroborated that the Manahans had cultivated the lots since Mariano's time.
To prove alienability, Eduardo presented DENR geodetic engineer Legaspi, who prepared an Advance Plan annotated as within alienable and disposable land per Land Classification Map No. 639, certified March 11, 1927, together with CENRO and PENRO Certifications repeating that classification.
The MTC's December 6, 2011 Decision granted the application, finding possession since 1949 and alienability both established.
The Republic appealed, and the CA's March 2, 2020 Decision affirmed in toto, crediting the CENRO Certification's presumption of regularity for alienability and Filomena's 1907 birth plus testimony for possession since 1945 or earlier.
The Republic's motion for reconsideration was denied, and it filed this Rule 45 petition.
While pending, Republic Act No. 11573 took effect on September 1, 2021.

Arguments of the Parties

Issue

SECONDARY ISSUES. Whether Eduardo sufficiently proved the subject lots had been declared alienable and disposable at any time before he filed his Application.

ANCILLARY / INCIDENTAL ISSUES (if any). What disposition follows where the possession requirement is satisfied but the alienability proof is not.

Ruling

Ratio

The Court reiterated the settled test — possession is open when "patent... not clandestine," continuous when "uninterrupted," exclusive when showing "exclusive dominion," and notorious when "so conspicuous that it is generally known and talked of" — finding all four satisfied since the tax declarations "serve as proof that as early as 1948, or 56 years prior to the filing of the Application... Eduardo and his predecessors-in-interest have been in possession and occupation of the subject lots under a bona fide claim of ownership," because "no one in their right mind would be paying taxes for a property that is not in their actual or at least constructive possession."
On alienability, the Court held CENRO certifications "must be identified by the government officials who issued them; otherwise, their contents are hearsay," and here "it was only Eduardo who identified the CENRO Certification during trial," rendering him "incompetent to testify on the facts stated" since he neither prepared it nor conducted the verification survey.
The Advance Plan likewise failed, being a "notation, not a certification, by the geodetic engineer," since "a surveyor has no authority to reclassify lands of the public domain."

Doctrine

Doctrines / Rules / Principles Laid Down.

Tax declarations spanning decades are good indicia of possession in the concept of owner; regular cultivation, with proof of its nature and extent, is an act of dominion satisfying possession and occupation.
A CENRO or PENRO certification on land classification is hearsay absent testimony from its issuing officer; historically, a certified true copy of the approving authority's original classification was additionally required.
Under RA 11573 Section 7, as elaborated in Pasig Rizal Co., a DENR geodetic engineer's sworn certification imprinted on the survey plan, authenticated by testimony, now suffices — a surveyor's mere notation does not.

Distinctions / Limitations / Qualifications.

Unlike cases where RA 11573's twenty-year period mooted the entire 1945-versus-later dispute because possession was undisputedly long, here the Court still had to adjudicate whether the shorter 1948-to-2004 gap independently cleared the new twenty-year floor, affirmatively finding that it did — confirming RA 11573 also benefits applicants whose possession falls a few years short of 1945, so long as it independently satisfies the shortened period.

Topic/Subtopic Integration (Mandatory).

DIRECT: the Court squarely and affirmatively resolved the sufficiency of the applicant's OCEN possession evidence under the RA 11573-amended Third Requisite, even though the alienability prong required remand.

Separate Opinions

None. Caguioa (Chairperson), Gaerlan, and Dimaampao, JJ., concurred; Singh, J., was on leave.

Full Digest — Recitation Format

Full-length digest in the format required by the course digest prompt.

Classification: DIRECT · G.R. No. 255266, April 21, 2025

TOPIC/SUBTOPIC FOCUS: No. 141, the Public Land Act, and P.D. No. 1529, the Property Registration Decree, Republic Act No. 11573, July 16, 2021

I. Gist and Central Doctrine

II. Chronological Narration of Material Facts

On March 11, 1927, the subject lots, consisting of Lot No. 320, Lot No. 4500, and Lot No. 4526 located in Barrio Guitnang Bayan, San Mateo, Rizal, were declared alienable and disposable agricultural lands of the public domain per the Land Classification map.
Sometime before the year 1945, predecessors-in-interest of Respondent Eduardo Manahan, namely Angelina, Antonino, Augusto, Filomena, and Lourdes, were born, with Filomena Sta. Maria Manahan being born in the year 1907.
Sometime during the youth of Respondent Eduardo Manahan, Respondent Eduardo Manahan accompanied Filomena Sta. Maria Manahan in supervising the planting of crops on the subject lots, which planting of crops occurred since Respondent Eduardo Manahan was ten years old.
In the year 1948, Mariano Manahan declared the subject lots for taxation purposes and claimed ownership and possession of the subject lots, using the subject lots as rice fields and for other agricultural purposes.
From the year 1948 to the year 2004, the Manahan family continuously, openly, and exclusively paid the real property taxes due on the subject lots and utilized the subject lots for agricultural cultivation, receiving shares of the crop harvest for the use and benefit of the Manahan family.
In the year 2004, Respondent Eduardo Manahan filed the Application for original land registration with the Municipal Trial Court of San Mateo, Rizal, docketed as Land Registration Case No. 085-04, praying for the confirmation and registration of title over the subject lots directly in the name of Respondent Eduardo Manahan.
Sometime during the trial, Respondent Eduardo Manahan submitted a Certification from the Community Environment and Natural Resources Office stating that the subject lots were alienable and disposable since March 11, 1927.
On December 6, 2011, the Municipal Trial Court of San Mateo, Rizal, rendered a Decision granting the Application of Respondent Eduardo Manahan, confirming the title over the subject lots under Presidential Decree No. 1529.
Petitioner Republic, through the Office of the Solicitor General, appealed the Decision of the Municipal Trial Court to the Court of Appeals.
On March 2, 2020, the Court of Appeals First Division rendered a Decision dismissing the appeal of Petitioner Republic and affirming the Decision of the Municipal Trial Court in toto.
Petitioner Republic filed a motion for reconsideration of the Decision of the Court of Appeals.
On December 10, 2020, the Court of Appeals denied the motion for reconsideration filed by Petitioner Republic.
Petitioner Republic subsequently elevated the case to the Supreme Court of the Philippines via a Petition for Review on Certiorari under Rule 45 of the Rules of Court.
On September 1, 2021, while the Petition for Review on Certiorari was pending before the Supreme Court, Republic Act No. 11573 officially took effect.
On April 21, 2025, the Supreme Court of the Philippines Third Division promulgated the Decision denying the Petition of Petitioner Republic in part, affirming the findings of possession, and remanding the case to the Court of Appeals for the reception of land classification evidence under Republic Act No. 11573.

III. Arguments of the Parties

A. Petitioner/Prosecution:

Petitioner Republic argues that Respondent Eduardo Manahan failed to present sufficient evidence of open, continuous, exclusive, and notorious possession and occupation of the subject lots in the concept of an owner since June 12, 1945, or earlier, as required by the old Section 14, paragraph 1 of Presidential Decree No. 1529.
Petitioner Republic contends that based on the tax declarations submitted in the land registration proceedings, Mariano Manahan claimed ownership and possession of the subject lots only in the year 1948, which is after the mandatory statutory cut-off date of June 12, 1945.
Petitioner Republic asserts that the testimony of witness Marilyn Diestro is insufficient and should not have been given weight by the lower courts because Marilyn Diestro failed to specify the exact date when the Manahans first acquired possession of the subject lots and failed to identify the specific acts of ownership exercised over the subject lots.
Petitioner Republic maintains that under the rules established in Republic v. T.A.N. Properties, Inc. and Republic v. Hanover Worldwide Trading Corp., the applicant must present a copy of the original land classification approved by the Secretary of the Department of Environment and Natural Resources, certified as a true copy by the legal custodian of the official records, which Respondent Eduardo Manahan failed to do.

B. Respondent/Defense:

Respondent Eduardo Manahan argues that the Manahan family had been in actual, open, continuous, and exclusive possession and occupation of the subject lots in the concept of owner since time immemorial, as corroborated by the testimony of Marilyn Diestro.
Respondent Eduardo Manahan contends that the fact that predecessors-in-interest, namely Angelina, Antonino, Augusto, Filomena, and Lourdes, were all born prior to the year 1945 proves the possession of the property before the statutory cut-off date.
Respondent Eduardo Manahan asserts that the cultivation and planting of crops on the subject lots by Filomena Sta. Maria Manahan, which Respondent Eduardo Manahan witnessed and assisted in since Respondent Eduardo Manahan was ten years old, constitutes clear, physical acts of dominion.
Respondent Eduardo Manahan maintains that the Certification issued by the Community Environment and Natural Resources Office, which carries the presumption of regularity, sufficiently proves that the subject lots were classified as alienable and disposable as early as March 11, 1927.

C. Common Ground:

Both Petitioner Republic and Respondent Eduardo Manahan do not dispute that the subject lots consist of Lot No. 320, Lot No. 4500, and Lot No. 4526, situated in Barrio Guitnang Bayan, San Mateo, Rizal, with a total combined area of eight thousand sixteen square meters.
The parties do not contest that the Municipal Trial Court granted the Application on December 6, 2011, and that the Court of Appeals affirmed the grant on March 2, 2020.
The parties agree that Republic Act No. 11573 was enacted and took effect during the pendency of the appeal before the Supreme Court of the Philippines.

IV. Issues

A. MAIN ISSUE:

B. SECONDARY ISSUES:

Whether Respondent Eduardo Manahan sufficiently proved that the subject lots are alienable and disposable lands of the public domain in accordance with the evidentiary standards set by Section 7 of Republic Act No. 11573.
Whether the lack of a certified true copy of the original land classification approved by the Secretary of the Department of Environment and Natural Resources can be cured by a remand of the case to the Court of Appeals for the reception of additional evidence under Section 7 of Republic Act No. 11573.

V. Ruling / Disposition

A. RULING ON THE MAIN ISSUE:

B. RULING ON SECONDARY ISSUE NO. 1:

C. RULING ON SECONDARY ISSUE NO. 2:

VERBATIM DISPOSITIVE PORTION: The Supreme Court of the Philippines' final dispositive portion in G.R. No. 255266 is quoted verbatim as follows:

"ACCORDINGLY, the Petition for Review on Certiorari filed by the Republic of the Philippines is DENIED in part.

The Decision dated March 2, 2020, and the Resolution dated December 10, 2020, respectively rendered by the First Division and Former First Division of the Court of Appeals in CA-G.R. CV No. 102713 are AFFIRMED insofar as they held that Eduardo Manahan, by himself and through his predecessors-in-interest, has been in open, continuous, exclusive, and notorious possession and occupation of the subject lots under a bona fide claim of ownership since 1948.

The case is REMANDED to the Court of Appeals for reception of evidence on the subject lots' land classification status based on the parameters set forth in Section 7 of Republic Act No. 11573 and its implementing rules and regulations. Thereafter, the Court of Appeals is DIRECTED to resolve the present case in accordance with this Decision with due and deliberate dispatch.

SO ORDERED."

VI. Ratio Decidendi and Doctrines

A. Ratio Decidendi:

The Curative Nature and Retroactive Application of Republic Act No. 11573: Under the principles of statutory construction, while laws generally have no retroactive effect, an exception arises when the statute is curative or remedial in nature. Section 1 of Republic Act No. 11573 declares the policy of the State to simplify, update, and harmonize land registration laws, and to remove ambiguity in the interpretation of land registration laws. By shortening the period of adverse possession required for confirmation of title to twenty years, Section 6 of Republic Act No. 11573 creates a new right in favor of land possessors. The retroactive application of this shortened period does not impair vested rights; instead, the retroactive application confirms the title of applicants whose ownership already existed prior to the enactment of the law. Therefore, the Supreme Court of the Philippines, relying on the En Banc precedent in Republic v. Pasig Rizal Co., Inc., held that the shortened twenty-year period applies retroactively to all land registration cases pending as of September 1, 2021, including the case of Respondent Eduardo Manahan.
The Substantive Shift in the Possessory Reckoning Period: Under the old Section 14, paragraph 1 of Presidential Decree No. 1529 and Section 48, paragraph b of Commonwealth Act No. 141, applicants were required to prove open, continuous, exclusive, and notorious possession and occupation of alienable public lands since June 12, 1945, or earlier. This arbitrary date often presented an insurmountable evidentiary barrier for legitimate possessors. The amendment under Section 6 of Republic Act No. 11573 replaced the June 12, 1945 cut-off date with a rolling possessory period of at least twenty years immediately preceding the filing of the application for confirmation of title. In the case of Respondent Eduardo Manahan, although the possession of the Manahan family commenced only in the year 1948 (thereby failing the old June 12, 1945 standard), the possession spanned fifty-six years prior to the filing of the Application in the year 2004, which more than satisfies the amended twenty-year requirement.
The High Evidentiary Threshold for Land Classification Proof: Pursuant to the Regalian doctrine, all lands of the public domain belong to the State, and any person seeking land registration carries the burden to prove that the land is alienable and disposable. While the Court of Appeals accepted the CENRO Certification under the presumption of regularity, the Supreme Court of the Philippines emphasized that the strict rules in Pasig Rizal Co., Inc. and Section 7 of Republic Act No. 11573 have superseded older methods of proving land classification. Section 7 requires a geodetic engineer's signed certification and sworn statement imprinted directly on the survey plan. Because the evidence of Respondent Eduardo Manahan lacked these technical specifications, the land classification was not legally established, prompting the necessity of a remand.
The Policy of Land Tenure Security and Avoidance of Multiplicity of Suits: Under Section 1 of Republic Act No. 11573, the State is mandated to provide land tenure security by continuing judicial and administrative titling processes. To dismiss the Application of Respondent Eduardo Manahan entirely due to a technical evidentiary defect in land classification—despite having fully proved fifty-six years of adverse possession—would run counter to the curative intent of the legislature. A complete dismissal would force Respondent Eduardo Manahan to file a new application, incurring unnecessary expenses and wasting judicial resources. Consequently, a remand to the Court of Appeals for the sole reception of land classification evidence under Section 7 of Republic Act No. 11573 is the most equitable and legally sound remedy.

B. Doctrines/Rules:

The Pasig Rizal/Manahan Curative Rule: Section 6 of Republic Act No. 11573, which amends Section 14, paragraph 1 of Presidential Decree No. 1529, applies retroactively to all pending land registration applications as of September 1, 2021. An applicant qualifies for original land registration by proving open, continuous, exclusive, and notorious possession and occupation of alienable and disposable agricultural land of the public domain under a bona fide claim of ownership for at least twenty (20) years immediately preceding the filing of the application, replacing the old June 12, 1945 possessory cut-off date.
The Geodetic Engineer Certification Standard: Under Section 7 of Republic Act No. 11573, a duly signed certification by a designated geodetic engineer of the Department of Environment and Natural Resources, imprinted directly on the approved survey plan, is sufficient proof of the land's alienable and disposable status. The imprinted certification must contain a sworn statement by the geodetic engineer that the land is within the alienable and disposable lands of the public domain, specifying the applicable Forestry Administrative Order, Executive Order, Proclamation, or Land Classification Project Map Number.

C. Limitations/Exceptions:

The Twelve-Hectare Area Limitation: Under the amended Section 14, paragraph 1 of Presidential Decree No. 1529, the right to apply for original land registration is strictly limited to land not exceeding twelve (12) hectares in area.
Prior State Use Exception: The simplified rule that the classification of public land as alienable and disposable immediately converts the property into patrimonial land susceptible to acquisitive prescription does not apply to lands that were previously utilized by the State for some public purpose or public service. In such cases, proof of conversion requires an express government manifestation of abandonment or withdrawal from the public dominion.

D. Topic Integration:

Republic v. Manahan is a direct application of the Pasig Rizal doctrine, demonstrating how the transition from the old June 12, 1945 possessory requirement to the new twenty-year possessory period under Section 14, paragraph 1 of Presidential Decree No. 1529 operates in practice. The decision highlights that while the possessory threshold has been significantly relaxed and simplified to protect the land tenure of long-term occupants, the evidentiary standard for proving the land's alienable and disposable character remains strict and must comply with the precise geodetic engineering certification required under Section 7 of Republic Act No. 11573. Thus, the case integrates the curative intent of the legislature with the judicial duty to protect the Regalian domain from fraudulent registrations.