A person licensed under Alaska Stat. § 08.40.210 – 08.40.490 as a mechanical administrator who is responsible for installation or modification of mechanical piping and systems, devices, fixtures, equipment, or other mechanical materials, or who is responsible for certifying that the installation or modification complies with applicable codes, shall personally inspect those materials after installation and modification unless the installation or modification amounts to simple or highly standardized work performed in less than 24 man-hours by personnel generally under the supervision of the mechanical administrator.