(a) Supervisors and other personnel utilized for construction, installation, inspection, or testing must have demonstrated their capability to perform satisfactorily the assigned function by appropriate training in the methods and equipment to be used or related experience and accomplishments. (b) Each operator must periodically determine whether inspectors performing construction, installation, and testing duties underrequired §by 193.2307this part are satisfactorily performing their assigned functionfunctions. [45 FR 9219, Feb. 11, 1980, as amended by Amdt. 193-18, 69 FR 11337, Mar. 10, 2004]