Code of Federal Regulations, Title 40, Part 63 (Section 63.8980 to End), Revised as of July 1, 2017

This print ISBN is the U.S. Federal Government official edition.40CFR, 63 (63.8989-end), continues coverage of Protection of Environment, Environmental Protection Agency (EPA)--Air Programs. This publication includes: National Emission Standards for Hazardous Air Pollutants for Source Categories.

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The Annual CFR Print Subscription can be found here: https: //bookstore.gpo.gov/products/code-federal-regulations-subscription-service-2017-paperback-0

CFR Title 40, Protection of Environment publications can be found here: https: //bookstore.gpo.gov/catalog/cfr-title-40-protection-environment