The Welsh Ministers may by regulations make provision for or in connection with requiring a local authority which receive a petition which complies with the provisions of the regulations to hold a referendum, in such circumstances as may be prescribed in the regulations, on whether the authority should operate a relevant form of executive.
In this section "relevant form of executive" means executive arrangements involving a form of executive for which a referendum is required.
The provision which may be made by regulations under subsection (1) includes provision—
The provision which may be made by virtue of subsection (2) includes provision which applies or reproduces (with or without modifications) any provisions of section 25, 27, 28, 29 or 33 or 29 ....
The number of local government electors mentioned in subsection (2)(b) is to be calculated at such times as may be provided by regulations under this section and (unless such regulations otherwise provide) is to be 5 per cent. of the number of local government electors at each of those times.
Nothing in subsection (2), (3) or (4) affects the generality of the power under subsection (1).