Section 1
SECTION 1. The municipal district of San Mariano, Province of Isabela, shall be converted into a regular municipality governed by the provisions of chapter fifty-seven of the Administrative Code.
Act No. 3416 Section 1
SECTION 1. The municipal district of San Mariano, Province of Isabela, shall be converted into a regular municipality governed by the provisions of chapter fifty-seven of the Administrative Code.
CitationAct No. 3416 Section 1 (LawPlayer, data as of July 4, 2026)
Source: Supreme Court E-Library, Republic of the Philippines. Philippine laws are public documents (works of the government).