Section 41952 Of Article 5. Gasoline Vapor Control From California Health And Safety Code >> Division 26. >> Part 4. >> Chapter 3. >> Article 5.

. A "vapor recovery system" consists of a vapor gathering system capable of collecting the hydrocarbon vapors and gases discharged and a vapor disposal system capable of processing such hydrocarbon vapors and gases so as to prevent their emission into the atmosphere, with all tank gauging and sampling devices gastight except when gauging or sampling is taking place.