The following provisions do not apply until the end of 1 month after the commencement—
(a) section 234A;
(b) section 243A;
(c) section 250(1)(a) and (b), to the extent it relates to an automatic methane detector fitted to an armoured face conveyor as required under section 234A;
(d) section 250(1)(c) and (5), to the extent it relates to a methane detector located as required under section 243, 243A or 244;
(e) section 343(2), to the extent it relates to a record for monitoring a ventilation system under section 343(1) for oxygen, methane or carbon dioxide;
(f) section 343(3).