The Implementing Rules and Regulations (IRR) for the Expanded Career Progression (ECP) system for public school teachers were signed on Friday. This system offers two career paths: the Classroom Teaching (CT) Career Line and the School Administration (SA) Career Line. Teachers can choose or switch between these tracks during their careers. The ECP system allows teachers to advance through various stages in each track. In the CT track, teachers can move from Teacher I to Teacher VII and then to Master Teacher I to Master Teacher V. In the SA track, they can progress from Master Teacher I to School Principal I through School Principal V.