Natural Gas Fueled Ships NOSAC 15 NOV 2011

Natural Gas Fueled Ships NOSAC 15 NOV 2011 Office of Design and Engineering Standards (CG-521) U. S. Coast Guard Headquarters United States Coast Guard Marine Safety, Security, and Stewardship

Recent Interest United States Coast Guard Marine Safety, Security, and Stewardship

Air Emissions Requirements • MARPOL Annex VI • U. S. implementation: Act to Prevent Pollution from Ships (APPS) – NOx – SOx • ECA United States Coast Guard Marine Safety, Security, and Stewardship

International GFS Standards Class Society Rules & Guides Interim Guidelines on Safety for Natural Gas-Fuelled Engine Installations in Ships United States Coast Guard Marine Safety, Security, and Stewardship

U. S. Safety Considerations Current Reviews on Case-By-Case Basis - concepts have used IMO Interim Guidelines as a baseline standard • Fuel System – machinery space configuration – tank placement – tank & piping requirements • CFR Hazardous Locations – classification of areas – electrical equipment • Gas Detection – system certification • Fire Protection – installed firefighting systems – fire detection Equivalent level of safety to Title 46 CFR United States Coast Guard Marine Safety, Security, and Stewardship

Engine Room Configuration Inherently Gas Safe vs. Emergency Shutdown (ESD) ESD protected engine room Non-certified electrical equipment Gas single wall pipe potential gas danger United States Coast Guard Marine Safety, Security, and Stewardship

Tank Placement clear separation on gas carrier not so easy on gas-fueled ship United States Coast Guard Marine Safety, Security, and Stewardship

Operational Issues • • Location of transfers (facility/truck/barge) Ops & Emergency Manuals Personnel Training Security Transfer Procedures PIC Credentials PPE Cargo, Facility & Industry Safety Standards United States Coast Guard Marine Safety, Security, and Stewardship

Approval Process for Gas-Fueled Ship Designs Design Basis USCG Headquarters Detailed Plan Review USCG Marine Safety Center Inspection USCG Local Sector United States Coast Guard Marine Safety, Security, and Stewardship

Conclusions • Option for air emissions compliance • Coast Guard conducting case-by-case reviews • Equivalent level of safety to 46 CFR • IMO Interim Guidelines can be used as baseline standard • Start discussions with Coast Guard early! United States Coast Guard Marine Safety, Security, and Stewardship

Thank you Tim Meyers Timothy. E. Meyers@uscg. mil 202 -372 -1365 LT Nick Woessner Nicholas. A. Woessner@uscg. mil 202 -372 -1307 John. P. Nadeau@uscg. mil - 202 -372 -1352 United States Coast Guard Marine Safety, Security, and Stewardship