{"data":{"id":"us/33-cfr-167.77","jurisdiction":"us","citation":"33 CFR 167.77","heading":"In the approach to Boston, MA: Traffic separation scheme.","body":"(a) A separation zone 1 mile wide is established and is centered upon the following geographic positions:\nLatitude Longitude\n42°20.73′ N 70°39.06′ W.\n42°18.28′ N 70°01.14′ W.\n40°49.25′ N 69°00.81′ W.\n(b) A traffic lane for northbound traffic is established between the separation zone and a line connecting the following geographical positions:\nLatitude Longitude\n40°50.47′ N 68°58.67′ W.\n42°20.17′ N 69°59.40′ W.\n42°22.71′ N 70°38.62′ W.\n(c) A traffic lane for southbound traffic is established between the separation zone and a line connecting the following geographical positions:\nLatitude Longitude\n42°18.82′ N 70°40.49′ W.\n42°16.39′ N 70°02.88′ W.\n40°48.03′ N 69°02.95′ W.","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER P—PORTS AND WATERWAYS SAFETY","PART 167—OFFSHORE TRAFFIC SEPARATION SCHEMES","Subpart B—Description of Traffic Separation Schemes and Precautionary Areas"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"052769d6bd544b04931b3aa30383b5e977cb419f24874fbf4b3f13345bd8bfa8","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-167.76","next":"us/33-cfr-167.100"},"notice":"GroundRules: Original legal text. Not legal advice."}