Washington Administrative Code

(1) An area within a distance of two-thirds of a mile of the city limits of incorporated cities and towns and the same distance from the center of any unincorporated town comprised of ten or more inhabited, closely grouped residences within Area 4 exclusive of Area 2.(2) Area 3 r…

The use or application of use restricted herbicides shall be prohibited in the area under order when the mean sustained wind velocity is over twelve miles per hour throughout the year.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-230-470, filed 12/26/18, …

Picloram (Tordon) is hereby declared to be a restricted use pesticide and the use or application of any formulation of picloram shall be prohibited in the following portion of Spokane County: An area beginning at the intersection of Brooks Road and state Highway 902; thence north…

WAC 16-230-605 through 16-230-670 apply to all counties located east of the crest of the Cascade Mountains.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-230-600, filed 12/26/18, effective 1/26/19. Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW.…

The rules in WAC 16-230-600 through 16-230-670 shall not preclude any additional restrictions on the application of use restricted herbicides provided for in the rules for specific counties located east of the Cascade Mountains.[Statutory Authority: RCW 15.58.040 and 17.21.030. W…

All formulations of phenoxy hormone-type herbicides (e.g., 2,4-D, 2,4-DB, 2,4-DP (dichlorprop), MCPA, MCPB, MCPP (mecoprop)) and dicamba except as listed below are use restricted herbicides.(1) Salt formulations, including amine and sodium, distributed in quantities of one gallon…

Phenoxy-hormone type herbicides and dicamba shall be sold and distributed only by licensed pesticide dealers to certified applicators or their duly authorized representatives except those listed in WAC 16-230-610 (1) and (2).[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR …

Use restricted herbicides shall not be applied on and after April 1st through October 31st of each year when there is a temperature inversion; or throughout the year if weather conditions are such that damage could result to adjacent and nearby towns, susceptible crops and planti…

On and after May 1st through October 31st of each year, the application of use restricted herbicides is prohibited daily from three hours prior to sunset to sunrise the following morning: Provided, That if there is a mean sustained legal wind velocity of not less than five miles …

The Washington state department of agriculture may issue a permit, upon receipt of a written request, to mix, load and apply certain use restricted herbicides with nozzles, nozzle type, control additives, or arrangements other than those required by rule.[Statutory Authority: RCW…

Ground applications of use restricted herbicides shall conform to the manufacturer's specified combination of nozzle type/size and pressure in pounds per square inch (psi) at the nozzle that produces a spray droplet size that falls within the medium (or larger) range as defined b…

(1) Aerial application of use restricted herbicides is prohibited within one mile of any commercial vineyard: Provided, That the Washington state department of agriculture may approve written requests and issue permit for aerial application of use restricted herbicides that may b…

In all counties restricted by rule the working boom length on fixed wing aircraft shall not exceed 3/4 of the wing span and the working boom length on helicopters shall not exceed 6/7 of the total rotor length or 3/4 of the total rotor length where the rotor length exceeds forty …

(1) The area under order includes: All lands lying within the boundaries of Benton County.(2) The distribution, use, and application of use restricted pesticides in the area under order shall comply with rules relating to the use of pesticides in chapter 16-228 WAC, and rules rel…

For the purposes of WAC 16-230-800 through 16-230-868, the following pesticides are declared to be use restricted pesticides:(1) Use restricted herbicides:*(a) Sulfonylurea herbicides (such as Glean, Telar, Finesse, Escort);(b) Desiccants and defoliants (such as Paraquat, Diquat,…

Aerial application of Paraquat or Diquat is prohibited in the entire area under order listed in WAC 16-230-800.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-230-815, filed 12/26/18, effective 1/26/19. Statutory Authority: Chapters 17.21, 15.58, and 34.05 …

Application of sulfonylurea herbicides (such as Glean, Telar, Finesse, Escort) to fallow land or to land during the time between harvest and emergence above the furrows of the subsequent cereal grain crop is prohibited.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-…

The following conditions will apply to all permits issued under the authority of WAC 16-230-800 through 16-230-868.(1) Application for a permit may be made to the Washington State Department of Agriculture, Compliance Branch, 21 N. First Avenue Suite 236, Yakima, Washington 98902…

In the event of an emergency, as declared by the director, the department may issue permits for the use of use restricted pesticides in variation of any restrictions contained in the area under order as defined in WAC 16-230-800. An emergency under this section may be declared if…

(1) Area 1 description (North Horse Heaven Hills). An area including all lands lying within a boundary line beginning at the northwest corner of Section 31, T8N, R24E; thence east two miles along section lines to the northwest corner of Section 33, T8N, R24E; thence north one mil…

(1) Area 1A description. All lands lying within a boundary line beginning at the northwest corner of Section 31, T8N, R24E; thence east two miles along section lines to the northwest corner of Section 33, T8N, R24E; thence north one mile along section lines to the northwest corne…

(1) Area 2 description. An area including all lands lying within a boundary line beginning at the northwest corner of Section 25, T10N, R26E; thence south approximately five miles along section lines to the intersection with the Kennewick Irrigation District (K.I.D.) main canal; …

(1) Area 3 description.(a) Eastern Yakima Valley. An area including all lands lying within a boundary line beginning at the northwest corner of Section 19, T8N, R24E; thence east four miles along section lines to the southwest corner of Section 14, T8N, R24E; thence north one mil…

(1) Area 4 description.(a) Tri-Cities northwest buffer zone. An area including all lands lying within a boundary line beginning at the northwest corner of Section 25, T10N, R26E; thence north two miles along section lines to the northwest corner of Section 13, T10N, R26E; thence …

(1) Area 5 description.(a) Cold Creek buffer zone. An area including all lands lying within a boundary line beginning at the southwest corner of Section 7, T12N, R24E; thence east five miles along section lines to the southeast corner of Section 11, T12N, R24E; thence north appro…

(1) Area 6 description. All remaining lands in the area under order.(2) Area 6 restrictions.(a) The use or application of low volatile ester formulations of use restricted herbicides is prohibited on and after April 5th through October 31st of each year: Provided, That phenoxy ho…

The use or application of all herbicides and class 1 and 2 insecticides are prohibited in the area under order listed in WAC 16-230-800 when the mean sustained wind velocity is over ten miles per hour throughout the year: Provided further, That applications of granular and pellet…

Use restricted herbicides shall not be applied throughout the year in the entire area under order when there is a temperature inversion present or weather conditions are such that damage could result to adjacent and nearby towns, susceptible crops, and plantings through physical …

Adoption of provisions under the American Society of Agricultural and Biological Engineers (ASABE) standards in this chapter is adoption of the provisions in the July 2018 version.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-231-085, filed 12/26/18, effe…

If there is a conflict between the spray droplet spectrum size required in these rules and that which is required by the pesticide label, the applicator must use the largest droplet spectrum size required.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-231-…

"Ready-to-use" means a pesticide that is applied directly from its original container consistent with label directions.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-231-095, filed 12/26/18, effective 1/26/19.]

(1) The area under order includes all lands lying within the boundaries of Franklin County. WAC 16-231-115 through 16-231-183 applies to the area under order.(2) The distribution, use, and application of use restricted pesticides in the area under order shall comply with rules re…

All formulations of phenoxy hormone-type herbicides (e.g., 2,4-D, 2,4-DB, 2,4-DP (dichlorprop), MCPA, MCPB, MCPP (mecoprop)) and dicamba except as listed below:(1) Salt formulations, including amine and sodium, distributed in quantities of one gallon or less;(2) Dry formulations …

The following pesticides are declared to be use restricted pesticides in Areas 2A, 4A, and 6:(1) Use restricted herbicides*:(a) Sulfonylurea herbicides (such as Glean, Telar, Finesse, Escort);(b) Desiccants and defoliants (such as Paraquat, Diquat, Endothall);(c) Glyphosate (such…

(1) Area 1 description.(a) This area includes all lands lying within a boundary line starting at the northwest corner of Section 6, T14N, R28E; thence east along the Adams-Franklin County line thirteen miles more or less to the intersection with State Route 17; thence southeaster…

(1) Area 1A description. This area includes all lands lying within a boundary line starting at the intersection of State Route 17 and the Adams-Franklin County line at the north section line of Section 5, T14N, R30E; thence east along the Adams-Franklin County line five miles mor…

(1) Area 2 description. This area includes all of the lands lying inside a boundary line starting at the intersection of State Routes 17 and 260 located at the northwest corner of Section 36, T14N, R30E; thence east along State Route 260, excluding the right of way, five miles mo…

(1) Area 3 description. (Dry land area south and east of Connell.) An area beginning at the northeast corner of Section 3, T14N, R33E and the Reeder Road; thence south along the Reeder Road to and along the Black Road to the Swanson Road; thence east and south along the Swanson R…

Area 4 description. (Dry land area.) All of the remaining lands in Franklin County lying east of Area 3.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-231-135, filed 12/26/18, effective 1/26/19. Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WS…

The use or application of use restricted herbicides shall be prohibited in Areas 1, 1A, 2, 3, and 4 when the mean sustained wind velocity is over twelve miles per hour throughout the year: Provided, That such applications shall be prohibited in Area 1 on and after April 1st throu…

(1) Area 2A description. An area including all lands lying in a boundary line beginning at the Columbia River and Interstate 182 near the east section line of Section 13, T9N, R28E; thence along Interstate 182 until its intersection with U.S. Highway 12; thence southeasterly alon…

(1) Area 4A description. An area including all lands lying within a boundary line beginning at the intersection of the Esquatzel Diversion Channel drain and the Columbia River; thence east along the Esquatzel Channel to its intersection with Road 68; thence southeasterly approxim…

(1) Area 6 description. An area including all lands lying within a boundary line beginning at the northwest corner of Section 30, T10N, R29E; thence east seven miles along Selph Landing Road until its intersection with Highway 395 near the northeast corner of Section 30, T10N, R3…

Aerial application of Paraquat and Diquat is prohibited in Areas 2A, 4A, and 6.[Statutory Authority: RCW 15.58.040 and 17.21.030. WSR 19-02-039, § 16-231-159, filed 12/26/18, effective 1/26/19. Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. WSR 07-11-041A, § 16-231-15…

Application of sulfonylurea herbicides (such as Glean, Telar, Finesse, Escort) to fallow land or to land during the time between harvest and emergence above the furrows of the subsequent cereal grain crop is prohibited in Areas 2A, 4A, and 6.[Statutory Authority: RCW 15.58.040 an…

The following conditions will apply to all permits issued in Areas 2A, 4A, and 6.(1) Application for a permit may be made to the Washington State Department of Agriculture, Compliance Branch, 21 N. 1st Avenue Suite 236, Yakima, Washington 98902. Applications may also be taken in …

In the event of an emergency, as declared by the director, the department may issue permits for the use of use restricted pesticides in variation of any restrictions contained in Areas 2A, 4A, and 6. An emergency under this section may be declared if the director determines that …