Washington Revised Code Title 18. Businesses and Professions § 18.380.020. Licensure or certification required--Unauthorized practices

(1)(a) Except as provided in RCW 18.380.030, no person may engage in the practice of applied behavior analysis unless he or she holds a license or a temporary license under this chapter. The use of behavioral techniques described in RCW 18.380.010(6)(a)(iii) alone does not constitute the practice of applied behavior analysis.

(b) A person not licensed under this chapter may not represent himself or herself as a “licensed behavior analyst” or a “licensed assistant behavior analyst.”