Michigan Compiled Laws, Chapter 290. Weights, Measures and Standards § 290.649j

Sec. 9j. (1) A person shall not deliver gasoline or permit the delivery of gasoline to a dispensing facility that lacks a stage I vapor-recovery system.

(2) Prior to delivery of gasoline to a dispensing facility, a delivery vessel shall be certified by the department of environmental quality as vapor tight by meeting the requirements of R 336.1627 of the Michigan administrative code.

(3) A person shall not deliver gasoline or permit the delivery of gasoline to a dispensing facility unless the stage I vapor-recovery system is employed during delivery and the dispensing facility storage tank is equipped with a permanent submerged fill pipe.

(4) A stage I vapor-recovery system shall include a properly functioning interlocking system or procedure that ensures that the vapor-tight collection line is connected before any gasoline is loaded, or shall include an equivalent system approved by the department.

(5) A stage I vapor-recovery system shall have a poppetted drybreak on the vapor return or an equivalent system approved by the department.

(6) All open vent pipes for a stage I vapor-recovery system that are on stationary tanks at dispensing facilities shall be equipped with pressure-vacuum relief valves in a system approved by the department.

(7) A dispensing facility regulated under this act is not subject to R 336.1606 or R 336.1703, or both, of the Michigan administrative code. This subsection does not apply to a delivery vessel which shall continue to be subject to the rules listed in this subsection.