155.This section provides that in general the provisions of the Act (except sections 1, 35-37 and 39, Parts 4 and 5 of Schedule 6 and Parts 4 to 6 of Schedule 7, which came into force on Royal Assent) are to come into force on a day or days to be appointed by a commencement order by the Secretary of State. This commencement order may contain any transitional provisions thought necessary. The section also repeals section 1 of the Armed Forces Act 1996 on 1st September 2001.