WAC 296-400A-140. How does the department enforce plumbers certification requirements?

The department enforces plumber certification requirements by means of job-site inspections conducted by an authorized representative of the department. The representative must determine whether: (1) Each person doing plumbing has their department issued certification card and governmental issued photo identification in their possession on the job site; and (2) The ratio of certified specialty and/or journey level plumbers to certified trainees is correct; and (3) Each certified trainee is directly supervised by either a certified specialty plumber or a certified journey level; and (4) Persons who are installing medical gas piping systems have active medical gas piping installer endorsements in addition to their active plumber certification; and (5) Persons who are certified as backflow assembly maintenance and repair specialties have an active backflow assembly tester certification from the department of health.