148.This section sets out timings and frequencies in respect of new assessments and review of assessments, including circumstances when a further assessment must be completed:
	the first fire risk assessment must be made within 6 months of a regulated building becoming “occupied”, or within 6 months of section 31 coming into force (whichever is later). This is, though, subject to paragraph 1 of Schedule 4 for buildings that already have a risk assessment under the Regulatory Reform (Fire Safety) Order 2005 (subject to certain conditions);
	the principal accountable person must ensure that the current fire risk assessment is reviewed at least once in every 12-month period that follows the date when the assessment was made. However, the principal accountable person must ensure that a further assessment is made if any of the circumstances in subsections (2) and (4) apply.
149.This section also provides the Welsh Ministers with a power to make regulations to vary the deadline by when a first fire risk assessment must be made. Such regulations could, for example, make different provision for different types of regulated buildings (see the general provision about regulations made under this Act, set out in section 135(1)(b)).
Commentary on Sections Part 1 - Safety of Buildings Containing Two Or More Residential Units Fire safety risks in regulated buildings Section 31 - Timing and review of fire risk assessments