The valuation officer for a billing authority in Wales must compile lists for the authority (to be called its local non-domestic rating lists) in accordance with this Part.
A list must be compiled on 1 April in each revaluation year.
Revaluation years are 2026 and every third year afterwards.
A list comes into force on the day on which it is compiled and remains in force until the next list is compiled.
Before a list is compiled the valuation officer must take such steps as are reasonably practicable to ensure that it is accurately compiled on 1 April concerned.
No later than 31 December preceding a day on which a list is to be compiled, the valuation officer must send to the authority a copy of the list proposed to be compiled (on the information then before the officer).
The authority must keep a copy of the proposed list electronically and must take such steps as it thinks suitable for giving notice of it.
As soon as is reasonably practicable after compiling a list, the valuation officer must send a copy of it to the authority.
The authority must keep a copy of the list electronically.
The valuation officer must maintain a list within subsection (11) for so long as is necessary for the purposes of this Part, whether or not the list is still in force.
A list is within this subsection if it was—
In maintaining the list that was required to be compiled on 1 April 1990, the valuation officer may take into account information obtained under section 82 or 86 of the 1967 Act.