4th ARMM Regional Legislative Assembly

The Fourth ARMM Regional Legislative Assembly was a meeting of the unicameral regional legislature of the Autonomous Region in Muslim Mindanao.

The fourth assembly experienced a leadership crisis involving the position of Assembly Speaker in 2003. Ibrahim Ibay's post as speaker was placed into dispute, when Ismael Abubakar Jr. of Tawi-Tawi with the support of 12 assemblyman held an unannounced session in which they declared the position of assembly speaker vacant with the present assemblymen electing Abubakar as speaker. Abraham Burahan was elected as speaker in a special session in August 2003 and was supported by 13 assemblymen including Ibay.