The administrator shall as often as deemed necessary, periodically check the effectiveness of the registered service person by follow-up investigations and tests in accord with the applicable specifications, tolerances, and other technical requirements for measures and measurement standards, as appropriate. When a follow-up is made within thirty days of the date identified on the placed-in-service report cited under section 4-87.1-12, the administrator shall apply acceptance tolerances in the investigation. A follow-up beyond thirty days of the date identified on the placed-in-service report shall result in the administrator applying maintenance tolerances in the investigation.
Haw. Code R. § 4-87.1-11