Below are all the Chapters required for Navy League Cadet Training: Able Cadets: Chapters 1 ,2, 3 Leading Cadets: Chapters 4, 5, 6 Petty Officer 2nd Class: Chapters 7, 8, 9 Petty Officer 1st Class: Chapters 10, 11, 12 Chief PO2: Assist with training Chief PO1: Coxswain