{"data":{"id":"us/46-cfr-69.171","jurisdiction":"us","citation":"46 CFR 69.171","heading":"When the tonnage mark is considered submerged.","body":"For the purpose of this subpart, a tonnage mark is considered submerged when—\n(a) In salt or brackish water, the upper edge of the tonnage mark is submerged; and\n(b) In fresh or tropical water, the upper edge of the line for fresh and tropical waters is submerged.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER G—DOCUMENTATION AND MEASUREMENT OF VESSELS","PART 69—MEASUREMENT OF VESSELS","Subpart D —Dual Regulatory Measurements System"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"5f88078b52fd46a32da3b0fb5c99e80c2abebd3759e340bcb9fbd08320d345dd","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-69.169","next":"us/46-cfr-69.173"},"notice":"GroundRules: Original legal text. Not legal advice."}