{"data":{"id":"us/33-cfr-401.52","jurisdiction":"us","citation":"33 CFR 401.52","heading":"Limit of approach to a bridge.","body":"(a) No vessel shall pass the limit of approach sign at any movable bridge until the bridge is in a fully open position and the signal light shows green.\n(b) No vessel shall pass the limit of approach sign at the twin railway bridges on the South Shore Canal at Kahnawake, until both bridges are in a fully open position and both signal lights show green.","path":["Title 33—Navigation and Navigable Waters","CHAPTER IV—GREAT LAKES ST. LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION","PART 401—SEAWAY REGULATIONS AND RULES","Subpart A—Regulations"],"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":"4b044f35f1537b066426c0c82f7f7fa69478734cfd972211d07a77292bff81b1","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-401.51","next":"us/33-cfr-401.53"},"notice":"GroundRules: Original legal text. Not legal advice."}