1. US Public Law 101-549; Signed into Law Nov. 15, 1990.
2. US Environmental Protection Agency, (May 1998), Fact Sheet on the Interim Air Quality Policy on Wildland and Prescribed Fires, Washington, D.C.
3. US Environmental Protection Agency, (May 21, 1999) 1990 Emissions Inventory of Forty Potential Section 112(k) Pollutants: Supporting Data for EPA's Section 112(k) Strategy, Table 6-4, Research Triangle Park, N.C.
4. Control of Emissions of Hazardous Air Pollutants from Mobile Sources; Proposed Rule, Federal Register, 65, Table III-4, page 48072, August 4, 2000
5. Control of Emissions of Hazardous Air Pollutants from Mobile Sources; Proposed Rule, Federal Register, 65, Table VI-1, page 48088, August 4, 2000