3Variation or revocation of orders under section 2
(1)The power conferred on the Secretary of State and the National Assembly for Wales by section 2 includes—
(a)power by a further order made under that section on an application made for the purposes of that section by one or more qualifying bodies, to amend any order previously made under that section so as to extend—
(i)the requirements or functions in relation to which the order applies,
(ii)the qualifying bodies to which it applies, or
(iii)subject to subsection (2), the period during which it has effect, and
(b)power by a further order under that section, which may be made without any application from a qualifying body, to revoke any order previously made under that section.
(2)An order made under section 2 by virtue of subsection (1)(a)(iii) of this section may, on one occasion only, extend the period for which a previous order under that section has effect by a period of not more than three years from the end of the period originally specified in the previous order.