The Changing of School Session Times (Wales) Regulations 2009
Section 32 of the Education Act 2002, as amended by the Learner Travel (Wales) Measure 2008, sets out who is responsible for determining the dates of school terms, school holidays and the times of school sessions. For foundation, voluntary aided and foundation special schools, the governing body determines all these, and for community, voluntary controlled, community special schools and maintained nursery schools, the governing body determines the times of school sessions (with the local education authority determining the dates of the school terms and holidays). However where a local education authority considers that a change in any maintained school's session times is necessary or expedient to promote the use of sustainable modes of travel or to improve the efficiency or effectiveness of its travel arrangements, it can determine the time the school's first session begins and its second session ends (or if there is only one session, its start and end).