MANILA - The Senate on Monday ratified the proposed Bangsamoro Organic Law, hours ahead of President Rodrigo Duterte's 3rd State of the Nation Address.
The Bangsamoro Law is one of the requirements under a 2014 peace agreement between Manila and the Moro Islamic Liberation Front (MILF), the country's largest Muslim rebel group.
Duterte, the first president from Mindanao, had certified the measure as urgent.
Senators and congressmen last week reconciled their versions of the measure in bicameral meetings.
Duterte's predecessor, former President Benigno Aquino III, forged the peace agreement with the MILF but failed to get Congress to pass a self-rule law before he stepped down in 2016.
Congress halted debates due to public outrage over the deaths of 44 police commandos in a botched anti-terrorism raid in Mamasapano, Maguindanao in January 2015.
The operation, which targeted a Malaysian bomb-maker wanted by the US, was overseen by then-suspended Philippine National Police chief Alan Purisima, Aquino's shooting buddy.
Some provisions in the Bangsamoro Law's earlier versions also faced questions on constitutionality.