In section 307 of the principal Act,-
(a) in sub-section (2), in clause (b), for the words "radio telegraphy certificate or a cargo ship safety radio telephony certificate", the words "radio certificate" shall be substituted;
(b) for sub-section (2A), the following sub-section shall be substituted, namely:-
"(2A) No sea-going Indian cargo ship, less than five hundred tons gross, shall proceed on a voyage from any port or place in India to any port or place in India or to any port or place outside India unless there is in force in respect of the ship a cargo ship construction certificate issued under section 299A and a cargo ship equipment certificate issued under section 300 and,-
(i) a cargo ship safety radio certificate if the ship is three hundred tons gross or more;
(ii) a qualified cargo ship safety radio certificate if the ship is operating within ports or places in India and is of three hundred to five hundred tons gross; or
(iii) a cargo ship radio certificate if the ship is less than three hundred tons gross, issued under section 301.";
(c) in sub-section (3),-
(i) in clause (a), for the words and figures "equipment certificate issued under section 300", the words, figures and letter "safety construction certificate or cargo ship construction certificate issued under section 299A" shall be substituted;
(ii) in clause (b), in the opening portion, after the word "a", the words "cargo ship equipment certificate or a" shall be inserted;
(iii) in clause (c), for the words "radio telegraphy certificate or a cargo ship radio telephony certificate", the words "safety radio certificate or a qualified cargo ship safety radio certificate, if the ship operates between ports or places in India and is between five hundred to three thousand tons gross", shall be substituted.