N.H. Admin. Code § Saf-C 403.10
All motorboats with a closed engine compartment which use gasoline or other inflammable fuel having a flash point of less than 110 degrees Fahrenheit, shall be provided with at least 2 ventilators fitted with cowls or their equivalent for the purpose of properly and efficiently ventilating the bilge, engine, and fuel tank compartments in order to remove any inflammable or explosive gases.
N.H. Admin. Code § Saf-C 403.10
#2351, eff 4-25-83; ss by #3010, eff 5-2-85; ss by #4562, eff 1-3-89; ss by #5936, INTERIM, eff 1-3-95, EXPIRES, 5-3-95 (formerly Saf-C 403.11 ); ss by #6005, eff 3-24-95, EXPIRED: 3-24-03
New. #7904, INTERIM, eff 6-24-03, EXPIRED: 12-21-03
New. #8107, EMERGENCY, eff 6-22-04, EXPIRES: 12-19-04; ss and moved by #8172, eff 9-21-04 (from Saf-C 403.09 ); ss by #10293, eff 3-20-13