TSCA Risk Evaluations

• 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 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 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

• Comments on Transparency in Regulatory Science (May, 2020)

Chemical Data Reporting

• Comments on TSCA Chemical Data Reporting (CDR) (June, 2019)

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 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

• Comments on TSCA New Chemical Review Program (Jan, 2017)

Flame Retardants

• Response to Tribal Consultation on Flame Retardants (Dec, 2015)

PFAS

• Comments on PFAS (Sept, 2018)

TSCA Rulemaking

• Comments on TSCA Rulemaking—Methylene Chloride, TC (June, 2015)

Environmental Justice

• Comments on EPA’s Proposed Policy on Environmental Justice for Tribes (June, 2014)

EPA Strategic Plan FY2018-2022

• Comments on EPA Draft Strategic Plan FY2018-2022 (Oct, 2017)

Guidelines for Human Exposure Assessment

• Tribal Comments on EPA Draft Guidelines for Human Exposure Assessment (Sept, 2016)

Hydraulic Fracturing

• Comments on Fracking Rule (Sept, 2014)

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)

Integrated Risk Information System (IRIS)

• Comments on the ORD Staff Handbook for Developing IRIS Assessments (March 2021)