(1) Before the ship is put into service, an initial survey of the radio installations (including survival craft radio installations);
(2) within 3 months before or after each anniversary of the issue date of the Cargo Ship Safety Radio Certificate, a periodical survey; (3) within 3 months before the fifth anniversary of the issue date of the Safety Radio Certificate, a renewal survey (for issue of a new certificate); and (4) after any repair resulting from investigations following a report to the MCA or a proper officer of an accident or a defect affecting the safety of the ship or its LSA, an additional survey.