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
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.