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Group IV Polymers and Resins: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Rule Summary

The organic hazardous air pollutants (HAP) are emitted during the manufacture of one or more of the following Group IV polymers and resins: acrylonitrile butadiene styrene resin (ABS), styrene acrylonitrile resin (SAN), methyl methacrylate acrylonitrile butadiene styrene resin (MABS), methyl methacrylate butadiene styrene resin (MBS), polystyrene resin, poly (ethylene terephthalate) resin (PET), and nitrile resin.

In the production of thermoplastics, a variety of organic HAP are used as monomers or are created as by-products. Some of these organic HAP 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

03/27/2014 – Final Rule

03/21/2012 – Reopening of Public Comment Period

01/09/2012 – Proposed Rule

07/16/2001 – Final Rule

02/23/2001 – Final Rule

10/26/2000 – Withdrawal of Direct Final Rule

08/29/2000 – Proposed Rule & Direct Final Rule

06/19/2000 – Final Rule

03/09/1999 – Proposed Rule

03/09/1999 – Proposed Rule & Direct Final Rule

03/31/1998 – Proposed Rule & Direct Final Rule

02/27/1998 – Final Rule, Correction of Effective Date

07/15/1997 – Final Rule, Correcting Amendment

06/06/1997 – Proposed Rule & Direct Final Rule

01/14/1997 – Proposed Rule & Direct Final Rule

10/18/1996 – Final Rule Preamble Correction

09/12/1996 – Final Rule

03/29/1995 – Proposed Rule

Additional Resources

Economic Impact Analysis for the Polymers and Resins IV NESHAP

Fact Sheets: Final Air Toxics Rules for Group IV Polymers and Resins

View the supporting documents for the 2014 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.

Related Rules

Group I Polymers and Resins: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Polymer Manufacturing Industry: Standards of Performance for Volatile Organic Compound (VOC) Emissions

Epoxy Resins Production and Non-Nylon Polyamides: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Manufacture of Amino/Phenolic Resins: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Control of Volatile Organic Compound Leaks from Synthetic Organic Chemical and Polymer Manufacturing Equipment

Control of Volatile Organic Compound Emissions from Manufacture of High-Density Polyethylene, Polypropylene, and Polystyrene Resins

Compliance

Applicability Determination Index (ADI).  The ADI is maintained by EPA's Office of Enforcement and Compliance Assurance (OECA) and provides a data base of memoranda dealing with applicability issues.  The database is searchable by Subpart.