Feedstock material is divided into the following four (4) types based on increasing level of potential risk to human health and the environment from physical contaminants and human pathogens:
- (1) Type 1. Composed of yard trimmings, wood chips, woody materials, crop residues, hay, cotton-gin waste, additives, biofilters, and other materials approved by DEQ.
- (2) Type 2. Composed of source-separated organics, shredded paper, cardboard, computer paper, white paper, newspapers, napkins, other paper products and bulking agents, and other materials approved by DEQ.
- (3) Type 3. Composed of biosolids, food processing residuals, cooking oils, fats and greases, and other materials approved by DEQ.
- (4) Type 4. Composed of mixed (non-source separated) organics, commercial waste, and other materials approved by DEQ.
Added at 34 Ok Reg 1199, eff 9-15-17