Group I Polymers and Resins: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Rule Summary
In the production of elastomers, a variety of organic hazardous air pollutants (HAP) are used as monomers or process solvents: Styrene, n-hexane, 1,3-butadiene, acrylonitrile, methyl chloride, hydrogen chloride, carbon tetrachloride, chloroprene, and toluene. Some of these pollutants are considered to be mutagens and carcinogens, and all can cause reversible or irreversible toxic effects following exposure.
See the regulations below for more details.
Rule History
04/21/2011 – Final Rule
10/21/2010 – Proposed Rule & Supplemental Notice of Proposed Rulemaking
12/16/2008 – Final Rule
12/12/2007 – Proposed Rule
07/16/2001 – Final Rule; technical amendments
06/19/2000 – Final Rule
05/07/1999 – Withdrawal of Amendment in Direct Final Rule
03/09/1999 – Proposed Rule
03/09/1999 – Proposed Rule & Direct Final Rule
07/15/1997 – Final Rule; correcting amendments
01/14/1997 – Proposed Rule & Direct Final Rule
09/05/1996 – Final Rule
06/12/1995 - Proposed Rule
Additional Resources
Fact Sheets- Final Air Toxics Rule for Group I Polymers and Resins in Elastomer Production
Economic Impact Analysis for the Polymers and Resins I NESHAP
View the supporting documents for the 2011 rule in the docket folder to find additional related documents to this rule.
View the supporting documents for the previous rules in the docket folder to find additional related documents to this rule.