Extension of deadline under Sea Cargo Manifest rules: regulation 15(2) deadline extended and notified in Gazette. The Sea Cargo Manifest and Transhipment (Sixth Amendment) Regulations, 2021 substitute the date reference in Regulation 15(2), extending the prescribed deadline to the subsequent month; the Regulations take effect on publication in the Official Gazette and are made under the enabling provisions of the Customs Act, 1962.