16. Where the registering authority have issued a certificate of registration in accordance with section 62(3) of the Act, they shall satisfy themselves by visits–
(a)at intervals of not more than 1 year, that the operation of the residential establishment continues to conform to the requirements for registration and in doing so shall have regard to the statement of functions and objectives prepared in accordance with regulation 5; and
(b)otherwise as they consider necessary or appropriate, that the safety and welfare of children resident within the establishment are being maintained.