"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.
N.H. Admin. Code § Env-Or 502.18
(See Revision Note #1 and Revision Note #2 at chapter heading for Env-Or 500) #10229, eff 11-17-12