Wash. Admin. Code § 246-840-311
(1) An ARNP holding an active license, without sanctions or restrictions, under one or more of the following previously existing advanced practice certification designations, may continue to renew his or her license as an ARNP:
[Statutory Authority: RCW 18.79.050, 18.79.110, and 18.79.160. WSR 16-08-042, § 246-840-311, filed 3/30/16, effective 4/30/16. Statutory Authority: RCW 18.79.010, [18.79.]050, [18.79.]110, and [18.79.]210. WSR 09-01-060, § 246-840-311, filed 12/11/08, effective 1/11/09. Statutory Authority: RCW 18.79.110. WSR 02-20-077, § 246-840-311, filed 9/30/02, effective 10/31/02.]