Island Provinces and the Constitution: The Dinagat Islands Creation Case

The Supreme Court's 2010 ruling in Navarro v. Executive Secretary (G.R. No. 180050) struck down Republic Act No. 9355, which created the Province of Dinagat Islands. The decision is a landmark on the constitutional limits of Congress when creating new local government units, clarifying that even the legislature cannot waive the population and land area criteria set by law.

The Case: A Province Born in Question

Dinagat Islands, a group of islands forming part of Surigao del Norte, was carved out as a separate province through Republic Act No. 9355, approved in October 2006. A plebiscite in December 2006 approved the creation, and provincial officials were elected. Petitioners challenged the law's constitutionality, arguing that the new province failed to meet the statutory requirements for population and land area.

The Constitutional Framework

Section 10, Article X of the 1987 Constitution provides that no province may be created except in accordance with the criteria established in the Local Government Code and subject to approval by a plebiscite. The Court emphasized that Congress itself imposed these criteria in the Local Government Code of 1991 (Republic Act No. 7160), and no law has amended them. Any deviation violates the Constitution.

The Requirements: Population and Land Area

The Local Government Code requires a province to have an average annual income of at least Twenty Million Pesos (P20,000,000.00) based on 1991 constant prices, plus either of two requisites: (1) a contiguous territory of at least 2,000 square kilometers, or (2) a population of not less than 250,000 inhabitants.

The Court found Dinagat Islands failed both. Its official population was only 106,951 per the 2000 Census, and even the 2007 Census showed just 120,813. A special census conducted by the provincial government in 2003 yielded 371,000, but it was never certified by the National Statistics Office as required. The province's land area was only 802.12 square kilometers—far short of the 2,000-square-kilometer minimum.

The Island Exemption: Rejected

Respondents relied on the Implementing Rules and Regulations of the Local Government Code, which stated that the land area requirement "shall not apply where the proposed province is composed of one or more islands." The Court struck down this provision as null and void.

The Court held that the exemption for island provinces applies only to the contiguity requirement, not to the land area requirement. The two requirements are distinct: a territory must be contiguous and at least 2,000 square kilometers. Since the exemption in the law speaks only of contiguity, the implementing rules could not expand it. Where the law is clear, courts may not introduce exceptions not found in the statute.

Operative Fact Doctrine: Not Applicable

The Court also rejected the argument that the "operative fact doctrine" should validate the province's existence despite the constitutional defect. While the doctrine may recognize the effects of an unconstitutional law, it does not cure the nullity itself. The Court cited Tan v. COMELEC: allowing a fait accompli to prevent judicial review would encourage reckless creation of political subdivisions.

Practical Takeaways

• Congress is bound by the Local Government Code. Even the legislature cannot create a province without meeting the population, land area, and income criteria prescribed by law.
• Island provinces are not automatically exempt. The island exemption applies only to territorial contiguity, not to the 2,000-square-kilometer land area requirement.
• Implementing rules cannot expand the law. An IRR that adds exemptions not found in the statute is void; the basic law prevails.
• Official certifications matter. Population must be certified by the National Statistics Office; a special census without such certification does not satisfy the requirement.
• Plebiscite approval is not enough. Even if voters approve, a province created without the statutory criteria is unconstitutional.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.