Division 4 - Plant Industry
- Chapter 1 - Chemistry (§§ 2300 — 2326.2)
- Chapter 2 - Field Crops (§§ 2675 — 2857)
- Chapter 3 - Entomology and Plant Quarantine (§§ 2924 — 3601)
- Chapter 4 - Plant Pathology (§§ 3610 — 3701.8)
- Chapter 5 - Rodent and Weed Control and Seed Inspection (§§ 3800 — 3940)
- Chapter 6 - Weed Free Areas and Weed Eradication Areas (§§ 3960 — 4500)
- Chapter 7 - Miscellaneous Rulings (§§ 4600 — 4603)
- Chapter 8 - Industrial Hemp Cultivation (§§ 4890 — 4952)