GRAIN AND CHEMICAL
- Chapter 16-200 - Fertilizers (§§ 16-200-600 — 16-200-7407)
- Chapter 16-201 - Fertilizer bulk storage and operational area containment rules (§§ 16-201-010 — 16-201-290)
- Chapter 16-202 - Application of pesticides and plant nutrients through irrigation systems (§§ 16-202-1001 — 16-202-2021)
- Chapter 16-213 - Miscellaneous agricultural commodity inspection standards (§§ 16-213-200 — 16-213-270)
- Chapter 16-218 - Hops - Certification analyses - Fees (§§ 16-218-015 — 16-218-050)
- Chapter 16-228 - General pesticide rules (§§ 16-228-1010 — 16-228-2060)
- Chapter 16-229 - Secondary and operational area containment for bulk pesticides (§§ 16-229-010 — 16-229-480)
- Chapter 16-230 - Use of chemicals and chemically treated materials in certain counties (§§ 16-230-005 — 16-230-868)
- Chapter 16-231 - Use restricted herbicides (§§ 16-231-085 — 16-231-935)
- Chapter 16-232 - Use restricted herbicides in certain counties (§§ 16-232-001 — 16-232-450)
- Chapter 16-233 - Worker protection standards (§§ 16-233-001 — 16-233-316)
- Chapter 16-236 - SEPA procedures (§§ 16-236-010 — 16-236-130)
- Chapter 16-237 - Commodity storage warehouses and grain dealers (§§ 16-237-010 — 16-237-210)
- Chapter 16-240 - WSDA grain inspection program Definitions, standards, and fees (§§ 16-240-010 — 16-240-090)
- Chapter 16-250 - Commercial feed (§§ 16-250-002 — 16-250-194)
- Chapter 16-252 - Commercial feed-Pet food and specialty pet food (§§ 16-252-002 — 16-252-194)
- Chapter 16-256 - Commercial feed rules - Processed animal waste (§§ 16-256-001 — 16-256-080)