A move that seeks to reconstitute the parliamentary districts in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM) has been signed into law on Thursday, August 28, 2025.

The Bangsamoro Parliamentary Redistricting Act of 2025 or BAA No.77 was signed into law by Interim Chief Minister Abdulraof Macacua.

It is also called “An Act Reconstituting the Parliamentary Districts in the BARMM, Amending for the purpose BAA No. 58” and amended the Bangsamoro Autonomy Act No. 58 titled "An Act Providing for the Creation of the Parliamentary Districts in the BARMM.”

Under the law, the seven parliamentary district seats allotted originally to Sulu have been redistributed after the Supreme Court ruled to exclude the province from the BARMM.

With this, the 32 single-member parliamentary districts in the region are now reapportioned to the following: nine parliamentary districts for Lanao del Sur; five each for Maguindanao del Norte and Maguindanao del Sur; four for Basilan; four for Tawi-Tawi; three for Cotabato; and two for the Special Geographic Area (SGA).

The law provides that in the event that Sulu rejoins BARMM, Congress may allocate at least seven parliamentary district seats corresponding to the population and other equitable requirements of the law.

The law also says that for purposes of the 2025 Parliamentary Election (2025 BPE), aspirants who have filed their certificate of candidacy (COC) will retain their candidacy in the district where they filed originally, notwithstanding that the barangay or municipality where they are registered has been reassigned to a different district.

The Act shall take effect immediately upon its publication in the Bangsamoro Gazette or on its official website.