The Coast Guard Office of Design and Engineering Standards has released MSIB 06-22 to inform Coast Guard Officers in Charge, Marine Inspection (OCMI) and the maritime industry that FM-200 (also known as HFC-227ea or heptafluoropropane), a fire extinguishing agent, is being phased down in production as part of the recent Environmental Protection Agency (EPA) rule1 to reduce the production of greenhouse gases leading to global warming.
Source: USCG
Link: MSIB 06-22: FM-200 fire extinguishing agent phasedown