WAC 296-150P-0520
WAC 296-150P-0520. Who can be authorized to approve design plans?
(1) A professional engineer, architect, or firm licensed by the state of Washington according to the Engineers Registration Act, chapter 18.43 RCW and/or the Architects Registration Act, chapter 18.08 RCW; or
(2) A professional engineer, architect, or firm licensed in another state that has licensing or certification requirements that meet or exceed Washington requirements.
(3) A professional engineer, architect, or firm cannot approve quality control plans.