Our Work
Public Comments
TSCA Risk Evaluations
- Comments on the Draft Proposed Principles of Cumulative Risk Assessment Under TSCA (April 2023)
- Comments on the Development of Tiered Data Reporting to Inform TSCA Prioritization, Risk Evaluation, and Risk Management (Aug 2021)
- Comments on the Draft Systematic Review Protocol Supporting TSCA Risk Evaluations for Chemical Substances (Sep 2022)
- Comments on Draft TSCA Screening Level Approach For Assessing Ambient Air and Water Exposures to Fenceline Communities (Feb 2022)
- Comments on Proposed Procedures for Chemical Risk Evaluations Under TSCA (Dec 2023)
- Comments on TSCA Rules for Chemical Risk Evaluations (March, 2017)
- Comments on Identifying Chemicals for Prioritization under TSCA (Nov, 2018)
First 10 high priority chemicals
- Comments on the Draft Supplement to the TSCA Risk Evaluation of 1,4 dioxane (Sep 2023)
- Comments on Asbestos Part II: Supplemental Evaluation Including Legacy Uses and Associated Disposals of Asbestos: Draft Scope For the Risk Evaluation to be Conducted Under TSCA (March 2022)
- Comments on the Draft Revision to TSCA Risk Determination of Cyclic Aliphatic Bromide Cluster (HBCD) (Feb 2022)
- Comments on First 10 Chemicals Scope Documents for Risk Evaluations (March, 2017)
- Comments on Perchloroethylene, Draft TSCA Risk Evaluation (July, 2020)
- Comments on Asbestos, Draft TSCA Risk Evaluation (June, 2020)
- Comments on N-methylpyrrolidone (NMP) Draft Risk Evaluation (Jan, 2020)
- Comments on Methylene Chloride Draft Risk Evaluation (Dec, 2019)
- Comments on Carbon Tetrachloride Draft Risk Evaluation (March, 2020)
- Comments on HBCD Draft Risk Evaluation (Aug, 2019)
- Comments on Trichloroethylene (TCE) Draft Risk Evaluation (Apr, 2020)
Next 20 high priority chemicals
- Comments on the Draft Risk Evaluation Under TSCA of TCEP (Feb 13, 2024)
- Comments on the Manufacturer-Requested Risk Evaluation Under TSCA of OTNE (May 2021)
- Comments on the Draft Proposed Approach for Cumulative Risk Assessment of High-Priority Phthalates and a Manufacturer-Requested Phthalate Under TSCA (April 2023)
- Comments on high priority designation for next 20 chemicals (Nov, 2019)
- Comments on the Draft Scopes of the next 13 chemicals (May, 2020)
- Comments on scopes of next 7 chemicals (June, 2020)
Science Advisory Committee on Chemicals
- Comments on SACC Nominations 2017
- Comments on SACC Ad-Hoc Nominations 2019
- NTTC nominates Chris Chaisson to the SACC
EPA’s Science Transparency Rule
Chemical Data Reporting
Polychlorinated bisphenyls (PCBs)
- NTTC Request for EPA to Investigate PCB Exposures to Tribal Communities (March, 2014)
- Comments on Tribal Consultation on PCB Use (Nov, 2013)
Persistent, Bioaccumulative, and Toxic Chemicals
- Comments on the DecaBDE and PIP (3:1) Revision to the Regulation of Persistent, Bioaccumulative, and Toxic Chemicals Under TSCA (Jan 2024)
- Comments on Proposed Rule on Persistent, Bioaccumulative, and Toxic Chemicals (PBTs) (May 2021)
- Comments on Proposed Rule on Persistent, Bioaccumulative, and Toxic Chemicals (PBTs) (Oct, 2019)
- Comments on Chlorinated Paraffins (Feb, 2016)
TSCA New Chemicals
Flame Retardants
PFAS
- Comments on the IRIS Toxicological Review of PFBA and Related Compounds (Nov 2021)
- Comments on PFAS (Sept, 2018)
TSCA Rulemaking
Environmental Justice
EPA Strategic Plan FY2018-2022
Guidelines for Human Exposure Assessment
Hydraulic Fracturing
National Program Manager
- Comments on OCSPP National Program Manager Guidance (Nov, 2016)
- Early Tribal Input on OECA National Program Manager Guidance (Sept, 2016)
- Comments on OECA NMP Guidance (July, 2014)