Regulation 39

according to the requirements mentioned in paragraph (2); and

at the frequency mentioned in paragraph (5).

the maintenance outcomes in the Fourth Schedule (or any alternative maintenance outcome accepted by the Commissioner of Building Control mentioned in paragraph (3)) and take reasonable steps to ensure that the maintenance outcomes will be met until the next periodic maintenance;

for any fixed installation (except a home lift, stairlift or vertical platform lift) —

the requirements for periodic maintenance in the manufacturer’s recommendation for the fixed installation (if any) and the applicable standard for the fixed installation; or

if a modification of requirement is accepted by the Commissioner of Building Control under regulation 45 for the fixed installation — the requirements in those modified requirements; and

for a home lift, stairlift or vertical platform lift —

the requirements for periodic maintenance in the manufacturer’s recommendation for the lift (if any) and in the applicable standard for the lift;

if no requirements in sub‑paragraph (i) are available — the requirements for periodic maintenance proposed by a supervisor QP or specialist professional engineer for the lift and accepted by the Commissioner of Building Control in writing; or

if a modification of requirement is accepted by the Commissioner of Building Control under regulation 45 for the lift — the requirements in those modified requirements.

for any lift that serves a single residential unit or the man machine interface of any mechanised car parking system —

at the frequency recommended in the manufacturer’s recommendation for periodic maintenance; or

if the frequency mentioned sub‑paragraph (i) is not available — once every 3 months;

for any stairlift or vertical platform lift that does not serve a single residential unit —

at the frequency recommended in the manufacturer’s recommendation for periodic maintenance; or

once every 3 months,whichever is more frequent;

for any other lift not mentioned in sub‑paragraphs (a) and (b) —

if a remote monitoring and diagnostics solution is used for the lift and the Commissioner of Building Control has granted a written approval under regulation 40 — at the frequency approved by the Commissioner of Building Control; or

in any other case —

at the frequency recommended in the manufacturer’s recommendation for periodic maintenance; or

once every month,whichever is more frequent; and

for an escalator — once every month.