Group IV Polymers and Resins: National Emission Standards for Hazardous Air Pollutants (NESHAP)
On this page:
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 (79 FR 17340)
03/21/2012 – Reopening of Public Comment Period (77 FR 16508)
01/09/2012 – Proposed Rule (77 FR 1268)
07/16/2001 – Final Rule (66 FR 36924)
02/23/2001 – Final Rule (66 FR 11233)
10/26/2000 – Withdrawal of Direct Final Rule (65 FR 64161)
08/29/2000 – Proposed Rule (65 FR 52392) & Direct Final Rule (65 FR 52319)
06/19/2000 – Final Rule (65 FR 38030)
03/09/1999 – Proposed Rule (64 FR 11560)
03/09/1999 – Proposed Rule (64 FR 11555) & Direct Final Rule (64 FR 11536)
03/31/1998 – Proposed Rule (63 FR 15345) & Direct Final Rule (63 FR 15312)
02/27/1998 – Final Rule, Correction of Effective Date (63 FR 9944)
07/15/1997 – Final Rule, Correcting Amendment (62 FR 37720)
06/06/1997 – Proposed Rule (62 FR 31038) & Direct Final Rule (62 FR 30993)
01/14/1997 – Proposed Rule (62 FR 1869) & Direct Final Rule (62 FR 1835)
10/18/1996 – Final Rule Preamble Correction (61 FR 54342)
09/12/1996 – Final Rule (61 FR 48208)
03/29/1995 – Proposed Rule (60 FR 16090)
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)
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.