Science & Technology

2-Ethylhexanoic Acid; Final Test Rule

EPA is issuing a final test rule, under section 4 of the Toxic Substances Control Act (TSCA), requiring manufacturers and processors of 2-ethylhexanoic acid (EHA, CAS No. 149-57-5) to conduct testing.

Dibasic Esters; Final Enforceable Consent Agreement and Testing Consent Order

Under section 4 of the Toxic Substances Control Act (TSCA), EPA has issued a testing consent order (Order) that incorporates an enforceable consent agreement (ECA) with the Aceto Corporation, E.I. du Pont de Nemours and Company, and Solutia Inc.

Unsubstituted Phenylenediamines; Final Test Rule

EPA is issuing a final rule, under section 4 of the Toxic Substances Control Act (TSCA), requiring manufacturers and processors of unsubstituted phenylenediamines to perform testing.

2-Ethylhexanol; Final Test Rule

EPA is issuing a final test rule, under section 4 of the Toxic Substances Control Act (TSCA), requiring manufacturers and processors of 2-ethylhexanol (EH: CAS No. 104-76-7) to conduct a 2-year oncogenicity bioassay.

Certain Chlorinated Benzenes; Final Test Rule

This rule promulgates EPA’s decision to require manufacturers and processors of 1,2,3-trichlorobenzene (CAS No. 87-61—6) to conduct testing.

Antimicrobial Testing Methods & Procedures: EQ-14-01

Information about ATMP - Hach’s Digital Titrator for Total Chlorine Titration - EQ-12

IRIS Public Science Meeting (Nov 2021)

The August 23, 2018 public meeting has been postponed as of August 22, 2018. Stay tuned for more information about a future event where the EPA will solicit comments on the public comment draft of the IRIS Assessment Plan (IAP) of Naphthalene.

IRIS Public Science Meeting (May 2019)

The May 15, 2019 public meeting has been announced where the EPA will solicit comments on the public comment draft of the IRIS Assessment Plan (IAP) of Chromium VI.

IRIS Public Science Meeting (April 2019)

The April 24, 2019 public meeting has been announced where the EPA will solicit comments on the public comment draft of the IRIS Assessment Plan (IAP) of Chromium VI.

IRIS Public Science Meeting (May 2018)

This May 23, 2018 public meeting is made available to solicit comments on the public comment draft of the IRIS Assessment Plan (IAP) of Ammonia (oral).

IRIS Public Science Meeting (Mar 2018)

This September 2016 public meeting is made available to solicit comments on the public comment draft of the IRIS Assessment of ETBE.

Testing Consent Order on Alkyl Phthalates

This document announces that EPA has signed an enforceable testing Consent Order with Aristech Chemical Corporation (Aristech), BASF Corporation (BASF), Exxon Chemical Company (Exxon), Eastman Kodak Company (Kodak), and Witco Corporation, Humko Chemical.

The Frank R. Lautenberg Chemical Safety for the 21st Century Act incorporated into the Toxic Substances Control Act

The following document is an unofficial version of TSCA as recently amended by the Frank R. Lautenberg Chemical Safety for the 21st Century Act.

Guidance on Regulations Issued Under the Toxic Substances Control Act (TSCA)

This page provides guidance to assist the regulated community in complying with policies or regulations that EPA has issued under the Toxic Substances Control Act (TSCA).

July 1, 2004, Transportation Conformity Final Rule

This page provides access to the July 1, 2004, conformity final rule that addresses the new ozone and PM2.5 air quality standards and the March 2, 1999, conformity court decision.

TSCA Section 402(c) Lead Exposure Reduction Proposed Renovation and Remodeling Rule

Round Table Discussion of TSCA Section 402c., the Lead Exposure reduction proposed renovation and remodeling rule.

Risk Evaluation for Diisononyl phthalate (1,2-Benzene- dicarboxylic acid, 1,2- diisononyl ester) (DINP)

EPA granted the manufacturer request for risk evaluation for di-isononyl phthalate (DINP) 1,2-benzenedicarboxylic acid, 1,2-isononyl ester in December 2019 and the chemical is currently undergoing risk evaluation.

Distribution of Soil Lead in the Nations Housing Stock, May 1996

The primary objective of this study was to supplement the prior report on Lead-Based Paint in housing through additional data analyses.

Lead Exposure Associated with Renovation and Remodeling Activities: Environmental Field Sampling Study Summary Report, EPA 747-R-96-005, May 1997

Presents results and conclusions from a study of the extent to which persons engaged in R&R activities are exposed to lead, disturb lead, and create a lead hazard to building occupants.

Technical Systems Audits (TSAs)

This page provide guidance and training material for the implementation of Technical Systems Audits within EPA's ambient air monitoring program.