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Clearinghouse for Inventories & Emissions Factors

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Emissions Factors & AP 42
Chapter 13: Miscellaneous Sources
Unpaved Roads - Background Documentation

AP-42 Section 13.2.2 Unpaved Roads
- Background Documentation

Technical Memorandum for final - December 2003 version (PDF 24K)
Technical Memorandum for draft - October 2001 (PDF 24K)
Background Document - Emission Factor Documentation for AP-42 Section 13.2.2 Unpaved Roads - September 1998 (PDF 530K)

AP 42 Emissions Factors by Chapter

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