Section 30(1) provides for Schedule 5 to define the matters which are “reserved” for the purposes of the Act.
The main purposes in the Act for which the definition of reserved matters is relevant are section 29 which deals with the legislative competence of the Scottish Parliament and section 53 which deals with the transfer of Ministerial functions which are exercisable within devolved competence to the Scottish Ministers.  It is also used, however, in various other contexts, such as section 88 which deals with cross-border public authorities.
Reserved Matters