RCW 49.105.030: Certification verification.

(1) Beginning January 1, 2026, contractors must ensure all fire-resistant material is applied by a certified fire-resistant material applicator prior to the individual applying any fire-resistant material. A contractor must verify that the individual is certified by the department by obtaining written documentation of the individual's certification.

(2) Contractors must retain the written documentation for a period of 10 years.