An industry guide recommending operational procedures for the safe ship to ship (STS) transfer of crude oil and products was first published in 1975. a similar guide recommending procedures for the STS transfer of liquefied petroleum gases (LPG) was published in 1980. Both publications have been revised and updated over the years as experience has been gained and procedures have been revised to reflect current best practices and equipment developments.

연도	항행통보 호수	항행통보 항수