“Poppetted dry break” means a stage I coupling equipped with a poppet valve that prevents vapors in a gasoline storage tank from escaping when a vapor return hose is not connected.

Source. (See Revision Note #1 and Revision Note #2 at chapter heading for Env-Or 500) #10229, eff 11-17-12; ss by #13458, eff 10-7-22 (formerly Env-Or 502.20)