This set of questions and answers provides guidance on various provisions in 40 CFR Part 63, subparts H and I. The following questions and answers are based on the final rule as promulgated on April 22, 1994 and as amended on September 20, 1994, October 24, 1994, October 28, 1994, January 27, 1995, April 10, 1995, and December 12, 1995.

• Questions and Answers for Subparts H and I of Part 63 Hazardous Organic NESHAP (HON) Equipment Leak Provisions (PDF)(16 pp, 133 K)