Alternative standards for valves in gas or vapor service or in light liquid service - Skip period leak detection and repair

1. A remanufacturer or other person that stores or treats the hazardous secondary material subject to the requirements of section 33.1-24-02-187 may elect for all valves within a hazardous secondary material management unit to comply with one of the alternative work practices specified in subdivisions b and c of subsection 2. 2. Requirements. a. A remanufacturer or other person that stores or treats the hazardous secondary material shall comply with the requirements for valves, as described in section 33.1-24-02-187, except as described in subdivisions b and c. b. After two consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than two percent, a remanufacturer or other person that stores or treats the hazardous secondary material may begin to skip one of the quarterly leak detection periods (for example, monitor for leaks once every six months) for the valves subject to the requirements in section 33.1-24-02-187. c. After five consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than two percent, a remanufacturer or other person that stores or treats the hazardous secondary material may begin to skip three of the quarterly leak detection periods (for example, monitor for leaks once every year) for the valves subject to the requirements in section 33.1-24-02-187. d. If the percentage of valves leaking is greater than two percent, the remanufacturer or other person that stores or treats the hazardous secondary material shall monitor monthly in compliance with the requirements in section 33.1-24-02-187, but may again elect to use this section after meeting the requirements of subdivision a of subsection 3 of section 33.1-24-02-187.