{"data":{"id":"us/46-cfr-78.47-53","jurisdiction":"us","citation":"46 CFR 78.47-53","heading":"-53 Automatic ventilation dampers.","body":"(a) The manual operating positions for automatic fire dampers in ventilation ducts passing through main vertical zone bulkheads shall be identified by red day light-reflecting letters at least 1/2 inch high “VENTILATION FIRE DAMPER.” In addition, the open and closed positions shall be similarly marked.\n(b) [Reserved]","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER H—PASSENGER VESSELS","PART 78—OPERATIONS","Subpart 78.47—Markings for Fire and Emergency Equipment, Etc."],"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":"c7bac189d9dff0d8edd1a04f5b9941085c82b0a60d806c79aea70cfd9915825a","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-78.47-45","next":"us/46-cfr-78.47-55"},"notice":"GroundRules: Original legal text. Not legal advice."}