Outboard Marine Tank - Certification and Testing Procedures Outboard Marine TanksAbout Certification and Testing Procedures for OMTsExecutive OrdersRegulatory History of OMTs Subscribe Certification & Test ProceduresCertification Procedure (CP-510) for Portable Outboard Marine Tanks and ComponentsTest Procedure 511:Portable Outboard Marine Tank Test Procedure: Diurnal Rate from Portable Outboard Marine TanksTest Procedure 512:Portable Outboard Marine Tank Test Procedure: Permeation Rate from Portable Outboard Marine Tank Fuel Hoses and Portable Marine Tank Primer Bulbs