Chapter 16-231 WAC

Last Update: 12/26/18

USE RESTRICTED HERBICIDES

WAC Sections

HTMLPDF16-231-085Adoption of national consensus code.
HTMLPDF16-231-090Order of precedence.
HTMLPDF16-231-095Definitions.
HTMLPDF16-231-100Restrictions for pesticide use in Franklin County.
HTMLPDF16-231-105Use restricted herbicides in Franklin County.
HTMLPDF16-231-107Use restricted pesticides in certain areas of Franklin County.
HTMLPDF16-231-115Boundaries and restrictions for use restricted herbicides in Franklin County Area 1.
HTMLPDF16-231-119Boundaries and restrictions on use restricted herbicides in Franklin County Area 1A.
HTMLPDF16-231-125Boundaries and restrictions on use restricted herbicides in Franklin County Area 2.
HTMLPDF16-231-130Boundaries and restrictions on use restricted herbicides in Franklin County Area 3.
HTMLPDF16-231-135Boundaries in Franklin County Area 4.
HTMLPDF16-231-145Wind restrictions for use restricted herbicides in Franklin County.
HTMLPDF16-231-149Boundaries and restrictions on use restricted herbicides in Franklin County Area 2A.
HTMLPDF16-231-153Boundaries and restrictions on use restricted herbicides in Franklin County Area 4A.
HTMLPDF16-231-156Boundaries and restrictions on use restricted herbicides in Franklin County Area 6.
HTMLPDF16-231-159Application of Paraquat or Diquat by air in Franklin County.
HTMLPDF16-231-162Application of sulfonylurea herbicides in Franklin County.
HTMLPDF16-231-165Conditions applying to permits in Franklin County.
HTMLPDF16-231-168Application of use restricted pesticides in an emergency in Franklin County.
HTMLPDF16-231-171Restrictions on applications in Franklin County due to wind.
HTMLPDF16-231-183Restrictions on application of pesticides in Franklin County due to weather conditions.
HTMLPDF16-231-200Restrictions for herbicide use in Yakima County.
HTMLPDF16-231-205Use restricted herbicides in Yakima County.
HTMLPDF16-231-215Boundaries and restrictions for Area 1 in Yakima County.
HTMLPDF16-231-220Boundaries and restrictions for Yakima County Area 1A.
HTMLPDF16-231-225Boundaries and restrictions for Yakima County Area 2.
HTMLPDF16-231-235Restrictions due to wind conditions in Yakima County.
HTMLPDF16-231-300Restrictions for herbicide use in Adams County.
HTMLPDF16-231-305Use restricted herbicides in Adams County.
HTMLPDF16-231-315Boundaries and restrictions for Adams County Area 1.
HTMLPDF16-231-320Boundaries and restrictions for Adams County Area 2.
HTMLPDF16-231-325Boundaries and restrictions for Adams County Area 3.
HTMLPDF16-231-330Boundaries for Adams County Area 4.
HTMLPDF16-231-340Restrictions on applications due to wind conditions in Adams County.
HTMLPDF16-231-400Use restricted herbicides—Columbia County—Area under order.
HTMLPDF16-231-405Use restricted herbicides in Columbia County.
HTMLPDF16-231-413Boundaries and restrictions for Columbia County Area 1.
HTMLPDF16-231-415Boundaries and restrictions for Columbia County Area 2.
HTMLPDF16-231-420Boundaries for Columbia County Area 4.
HTMLPDF16-231-425Restrictions due to wind conditions for Columbia County.
HTMLPDF16-231-500Restrictions for herbicide use in Whitman County.
HTMLPDF16-231-505Use restricted herbicides in Whitman County.
HTMLPDF16-231-510Boundaries and restrictions for Whitman County Area 1.
HTMLPDF16-231-515Boundaries and restrictions for Whitman County Area 3.
HTMLPDF16-231-520Boundaries for Whitman County Area 4.
HTMLPDF16-231-530Restrictions due to wind conditions in Whitman County.
HTMLPDF16-231-600Restrictions for herbicide use in Klickitat County.
HTMLPDF16-231-605Use restricted herbicides in Klickitat County.
HTMLPDF16-231-613Boundaries and restrictions for Klickitat County Area 2.
HTMLPDF16-231-615Boundaries and restrictions for Klickitat County Area 3.
HTMLPDF16-231-620Restrictions due to wind conditions in Klickitat County.
HTMLPDF16-231-700Restrictions for herbicide use in Okanogan County.
HTMLPDF16-231-705Use restricted herbicides in Okanogan County.
HTMLPDF16-231-710Boundaries and restrictions for Okanogan County Area 1.
HTMLPDF16-231-720Restrictions due to wind conditions in Okanogan County.
HTMLPDF16-231-800Restrictions for herbicide use in Douglas and Chelan counties.
HTMLPDF16-231-805Use restricted herbicides in Douglas and Chelan counties.
HTMLPDF16-231-810Boundaries and restrictions for Area 1 in Douglas and Chelan counties.
HTMLPDF16-231-815Boundaries and restrictions for Area 2 in Douglas and Chelan counties.
HTMLPDF16-231-820Boundaries and restrictions for Area 3 in Douglas and Chelan counties.
HTMLPDF16-231-825Boundaries and restrictions for Area 4 in Douglas and Chelan counties.
HTMLPDF16-231-840Restrictions due to wind conditions in Douglas and Chelan counties.
HTMLPDF16-231-900Restrictions for herbicide use in Grant County.
HTMLPDF16-231-905Use restricted herbicides in Grant County.
HTMLPDF16-231-910Boundaries and restrictions for Grant County Area 1.
HTMLPDF16-231-912Boundaries and restrictions for Grant County Area 1A.
HTMLPDF16-231-915Boundaries and restrictions for Grant County Area 2.
HTMLPDF16-231-920Boundaries and restrictions for Grant County Area 3.
HTMLPDF16-231-925Boundaries for Grant County Area 4.
HTMLPDF16-231-935Restrictions due to wind conditions in Grant County.
DISPOSITION OF SECTIONS FORMERLY CODIFIED IN THIS TITLE
16-231-001Restricted use herbicides—Benton County—Area under order. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-001, filed 2/26/91, effective 3/29/91; WSR 80-03-038 (Order 1677), § 16-231-001, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-005Restricted use herbicides. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-038 (Order 1677), § 16-231-005, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-010Oil-type carriers. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-038 (Order 1677), § 16-231-010, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-015Restricted use herbicides—Benton County—Area 1. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 88-05-033 (Order 1965), § 16-231-015, filed 2/12/88; WSR 87-18-060 (Order 1950), § 16-231-015, filed 9/1/87; WSR 80-03-038 (Order 1677), § 16-231-015, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-020Restricted use herbicides—Benton County—Area 2. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 88-05-033 (Order 1965), § 16-231-020, filed 2/12/88; WSR 87-09-015 (Order 1923), § 16-231-020, filed 4/6/87; WSR 80-03-038 (Order 1677), § 16-231-020, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-025Area 3. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-038 (Order 1677), § 16-231-025, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-030Restricted use herbicides—Benton County—Wind conditions. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 87-09-015 (Order 1923), § 16-231-030, filed 4/6/87; WSR 80-03-038 (Order 1677), § 16-231-030, filed 2/20/80.] Repealed by WSR 92-13-035, filed 6/10/92, effective 7/11/92. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-033Restricted use herbicides—Application records—Benton County. [Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 87-18-060 (Order 1950), § 16-231-033, filed 9/1/87.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-035Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-038 (Order 1677), § 16-231-035, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-110When are oil-type carriers prohibited? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-110, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-037 (Order 1676), § 16-231-110, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-120Area 1A. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 81-07-044 (Order 1726), § 16-231-120, filed 3/16/81; WSR 80-03-037 (Order 1676), § 16-231-120, filed 2/20/80.] Repealed by WSR 87-18-060 (Order 1950), filed 9/1/87. Statutory Authority: Chapters 17.21 and 15.58 RCW.
16-231-140What are the restrictions on mixing or loading aircraft? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-140, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 00-24-002, § 16-231-140, filed 11/22/00, effective 12/23/00; WSR 80-03-037 (Order 1676), § 16-231-140, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-148Restricted use herbicides—Application records—Franklin County. [Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 87-18-060 (Order 1950), § 16-231-148, filed 9/1/87.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-150Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-037 (Order 1676), § 16-231-150, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-174Application of pesticides in Franklin County—Areas 2A, 4A, and 6—Use restricted herbicides ground apparatus nozzle requirements. [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-174, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 00-24-002, § 16-231-174, filed 11/22/00, effective 12/23/00.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-177Application of pesticides in Franklin County—Areas 2A, 4A, and 6—Use restricted herbicides, aircraft boom length, pressure, and nozzle requirements. [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-177, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 00-24-002, § 16-231-177, filed 11/22/00, effective 12/23/00.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-180What are the restrictions on applications of pesticides in Franklin County—Areas 2A, 4A, and 6—Use restricted herbicides due to temperature conditions? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-180, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 00-24-002, § 16-231-180, filed 11/22/00, effective 12/23/00.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-210When are oil-type carriers prohibited in Yakima County? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-210, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-210, filed 2/26/91, effective 3/29/91; WSR 80-03-036 (Order 1675), § 16-231-210, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-230What are the restrictions on mixing or loading for aircraft? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-230, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-036 (Order 1675), § 16-231-230, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-238Restricted use herbicides—Application records—Yakima County. [Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 87-18-060 (Order 1950), § 16-231-238, filed 9/1/87.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-240Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-036 (Order 1675), § 16-231-240, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-310When are oil-type carriers prohibited in Adams County? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-310, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-310, filed 2/26/91, effective 3/29/91; WSR 80-03-035 (Order 1674), § 16-231-310, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-335What are the restrictions on applications near vineyards? [Statutory Authority: Chapters 15.58, 17.21, and 34.05 RCW. WSR 10-15-015, § 16-231-335, filed 7/8/10, effective 8/8/10; WSR 07-11-041A, § 16-231-335, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-035 (Order 1674), § 16-231-335, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-343Restricted use herbicides—Application records—Adams County. [Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 87-18-060 (Order 1950), § 16-231-343, filed 9/1/87.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-345Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-035 (Order 1674), § 16-231-345, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-410When are oil-type carriers prohibited in Columbia County? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-410, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-410, filed 2/26/91, effective 3/29/91; WSR 80-03-034 (Order 1673), § 16-231-410, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-430Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-034 (Order 1673), § 16-231-430, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-525What are the notification requirements of farm operators for use restricted herbicides in Whitman County? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-525, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-525, filed 2/26/91, effective 3/29/91; WSR 80-03-033 (Order 1672), § 16-231-525, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-535Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-033 (Order 1672), § 16-231-535, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-610When are oil-type carriers prohibited in Klickitat County? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-610, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-610, filed 2/26/91, effective 3/29/91; WSR 80-03-029 (Order 1668), § 16-231-610, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-625Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-029 (Order 1668), § 16-231-625, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-715What are the boundaries and restrictions for Okanogan County Area 4? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-715, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 91-06-019 (Order 2073), § 16-231-715, filed 2/26/91, effective 3/29/91; WSR 80-03-027 (Order 1666), § 16-231-715, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-725What are the restrictions on mixing or loading aircraft? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-725, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-027 (Order 1666), § 16-231-725, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-730Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-027 (Order 1666), § 16-231-730, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-830What are the restrictions on mixing and loading aircraft? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-830, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-028 (Order 1667), § 16-231-830, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-835What are restrictions for aerial applications near vineyards? [Statutory Authority: Chapters 15.58, 17.21, and 34.05 RCW. WSR 10-15-015, § 16-231-835, filed 7/8/10, effective 8/8/10; WSR 07-11-041A, § 16-231-835, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-028 (Order 1667), § 16-231-835, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-845Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-028 (Order 1667), § 16-231-845, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-930What are the restrictions on mixing and loading aircraft? [Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-930, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-031 (Order 1670), § 16-231-930, filed 2/20/80.] Repealed by WSR 19-02-039, filed 12/26/18, effective 1/26/19. Statutory Authority: RCW 15.58.040 and 17.21.030.
16-231-938Restricted use herbicides—Application records—Grant County. [Statutory Authority: Chapters 17.21 and 15.58 RCW. WSR 87-18-060 (Order 1950), § 16-231-938, filed 9/1/87.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-940Distribution, use and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 80-03-031 (Order 1670), § 16-231-940, filed 2/20/80.] Repealed by WSR 88-09-013 (Order 1973), filed 4/12/88. Statutory Authority: Chapters 15.58 and 17.21 RCW.
16-231-950Restricted use herbicides—Distribution, use, and application. [Statutory Authority: Chapters 15.58 and 17.21 RCW. WSR 88-09-013 (Order 1973), § 16-231-950, filed 4/12/88.] Repealed by WSR 91-06-019 (Order 2073), filed 2/26/91, effective 3/29/91. Statutory Authority: Chapters 15.58 and 17.21 RCW.