The user shall ensure that every lift, escalator or passenger conveyor is inspected and tested in accordance with the relevant health and safety standards incorporated into these Regulations under section 44 of the Act-
(a) before such lift, escalator or passenger conveyor is put into use for the first time; or
(b) after any modification has been effected; or
(c) after any failure has occurred; or (d) whenever there has been a change in the competent lift service provider; and (e) at intervals not exceeding 24 months thereafter, or at shorter intervals according to in-house risk assessment, by an inspection service provider who shall complete a comprehensive report separately for each lift, escalator or passenger conveyor so inspected and tested, and such inspection service provider shall date and sign such report and submit it within 30 days to the user, who shall keep the report in a safe place and a copy of the report in the machine compartment