§ 57.105.6.17 — HAZARDOUS MATERIALS
Los Angeles Municipal Code (2026 Rev. 9, current through legislation effective June 30, 2026) · Los Angeles Municipal Code § 57.105.6.17
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SEC. 57.105.6.17. HAZARDOUS MATERIALS.
An Operational Permit is required to store, process, or use materials above ground of the type and in the amounts exceeding those set forth in Table 57.105.6.17 or exceeding the permit amounts for hazardous materials in Chapter 50. TABLE 57.105.6.17 AMOUNTS OF MATERIALS EXEMPT FROM SECTION PERMIT REQUIREMENTS TYPE | QUANTITY TYPE | QUANTITY 1. Air-Reactive Materials | No exemption 2. Water-Reactive Materials | No exemption 3. Unstable Materials | No exemption 4. Explosive Materials | Class A | No exemption Class B | 10 Lbs. 5. Fireworks | No exemption 6. Smokeless Powder | 20 Lbs. 7. Black Sporting Powder | 5 Lbs. 8. Small Arms Ammunition | 1,000 Lbs. (Net Weight) 9. Flammable Gases | 3,000 Cu. Ft. 10. Liquified Flammable Gases | 60 Gal. 11. Flammable Liquids | Class IA | 60 Gal. Class IB | 120 Gal. Class IC | 180 Gal. Combination of Flammable Liquids with not more than the exempt amount of Class IA, IB, or IC Liquids | 240 Gal. 12. Combustible Liquids | Class II | 240 Gal. Class III | 500 Gal. 13. Combustible Metals | 500 Lbs. 14. Flammable Fibers | Loose | 100 Cu. Ft. Baled | 1,000 Cu. Ft. 15. Flammable Solids | 500 Lbs. 16. Toxic Materials | Class 3, 4 | No exemption Class 1, 2 Gases | 400 Cu. Ft. Solids or Liquids | 100 Lbs. Etiologic Agent | No exemption 17. Oxidizing Materials | Gases | 504 Cu. Ft. Liquids | 50 Gal. Solids | 500 Lbs. 18. Organic Peroxides | Class I, II, III | No exemption Class IV | 10 Lbs. 19. Corrosive Materials | Liquids | 200 Gal. Solids | 2,000 Lbs. 20. Ammonium Nitrate Compound Mixtures Containing More Than 60% Nitrate Weight | 1,000 Lbs.