Rule 17.56.205 - ANTI-SIPHON REQUIREMENTS(1) The owner or operator of an UST system that is located at an elevation that produces a gravity head on an underground piping system shall ensure that the product pipe is equipped with one of the following devices: (a) a department-approved anti-siphon valve;(b) a department-approved normally closed solenoid valve; or(c) any other department-approved device designed to prevent siphoning.Mont. Admin. r. 17.56.205
NEW, 2011 MAR p. 145, Eff. 2/11/11.75-11-505, MCA; IMP, 75-11-505, MCA;