With the ratification of the Bangsamoro Organic Law following a plebiscite on January 21, 2019, the abolition process of the Autonomous Region in Muslim Mindanao (ARMM) began, paving way for the formal creation of the Bangsamoro Autonomous Region.

The Bangsamoro Organic Law mandates the interim chief minister to submit to the BTA within the first 60 days of the transition period a transition plan containing the Bangsamoro government's "proposed organizational plan, as well as, the schedule for implementation therefor."

It also requires the approval or action of the BTA on the proposed plan within 10 days upon its submission.

The transition plan was then submitted to the Bangsamoro Parliament on June 17, 2019, and was approved by the legislature the following day.

[6] Following the fourth session of the parliament, eight ad hoc committees were formed to draft the priority legislations.