Marine Safety Traffic Law was enacted on 16th June 1972 and will be enforce from 1st July 1973. On theother hand, a Conference of IMCO was held in London from 4th Oct. to 20th Oct. 1972 for the purpose of revising the International Regulations for Preventing Collisions at Sea, 1960 and new Convention was adopted, and then New Regulation for Preventing Collisions at Sea will be enacted for years after at our nation. I think, there are some problems between Marine Safety Traffic Law and Convention on the International Regulations for Preventing Collisions at Sea, 1972. The paper studied. on some problems as follow, (1) Traffic method and Lamplight, etc. of Huge vessel. (2) Traffic method of vessel engaged in fishing and sailing vessel. (3) Signal in case of Passing other vessel. (4) Lamplight, etc. of vessel loaded with dangerous cargo.
