We've compiled and archived letters and other official correspondence from EWG to government agencies, elected officials, industry associations and companies.
Displaying 1 - 20 of 276
EWG comments to HHS and FCC on radiofrequency radiation exposure limits
Attached are EWG’s comments to the Department of Health and Human Services and the Federal Communications Commission urging joint action to update radiofrequency radiation exposure limits to protect...
Hilary Swank letter urging Gov. Gavin Newsom to sign diaper ingredients disclosure bill
Attached is actor and children’s health advocate Hilary Swank’s letter urging California Gov. Gavin Newsom to sign AB 1901, a diaper ingredients disclosure bill.
EWG opposes rewrite of proposed ASTM standard that could still classify hazardous amphibole particles as non-asbestos
Attached are EWG’s comments to ASTM International opposing a second proposed standard for classifying elongate amphibole particles. EWG remains concerned that the method’s binary classifications may...
EWG letter objecting to the EPA's chlormequat tolerances
Attached are EWG’s objections to the Environmental Protection Agency’s final rule setting chlormequat tolerances. EWG urges the agency to retain the tenfold children’s safety factor required by law.
EWG comments on EPA's proposed sixth Unregulated Contaminant Monitoring Rule
Attached are EWG’s comments to the Environmental Protection Agency on its proposed sixth Unregulated Contaminant Monitoring Rule.
EWG opposes proposed ASTM standard that could classify hazardous amphibole particles as non-asbestos
Attached are EWG's comments to ASTM International opposing a proposed standard for classifying elongate amphibole particles. EWG raises concerns that the method relies on outdated binary...
EWG on FDA’s request for information on butylated hydroxyanisole in food
Attached are EWG’s comments asking the Food and Drug Administration to remove BHA from food. submitted in response to the agency’s request for information.
EWG comments on California DTSC's 2025 microplastics in consumer products research
Attached are EWG’s comments in support of the California Department of Toxic Substances Control’s 2025 microplastics in consumer products research.
EWG comments on the FDA’s ultra-processed foods request for information
Attached are EWG’s comments submitted in response to the Food and Drug Administration’s request for information to be used to develop a uniform definition of ultra-processed food.
Letter to Rachael Ray
Dear Ms. Ray, We are writing in response to your recent letter to California state lawmakers opposing Senate Bill 682, which would ban cookware containing the nonstick PFAS “forever chemical”...
EWG comments on the U.S. Environmental Protection Agency July 2025 announcement regarding perchloroethylene regulation under the Toxic Substances Control Act
Attached are EWG's submitted comments to the Environmental Protection Agency on their July 2025 announcement regarding perchloroethylene regulation under the Toxic Substances Control Act.
EWG comments to California DTSC to reiterate support on proposed inclusion of microplastics to the Candidate Chemicals List
Attached are EWG's submitted comments to the California Department of Toxic Substances Control to confirm continued support for the listing of microplastics to the state agency's Candidate Chemicals...
EWG comments on safer sunscreens to Health Subcommittee of the House Committee on Energy and Commerce
Attached are comments to the Health Subcommittee of the House Committee on Energy and Commerce in reference to safer sunscreens for the hearing “Legislative Proposals to Maintain and Improve the...
EWG comments to California Department of Pesticide Regulation on the process to identify priority pesticides
EWG submitted comments to the California Department of Pesticide Regulation on the agency's proposed process for pesticide prioritization.
EWG's comments recommending that the FDA adopt action levels for PFAS in food.
These comments are submitted on behalf of the Environmental Working Group (EWG) in support of the citizen petition by the Tucson Environmental Justice Task Force (TEJTF) urging the FDA to set...
EWG comments to California Department of Pesticide Regulation on the proposed regulation for 1,3-dichloropropene
EWG submits comments to the California Department of Pesticide Regulation urging the agency to create one, unifying regulation, based on the risk assessment performed by the state's Office of...
EWG comments to California Department of Pesticide Regulation on the 2023 Draft Air Monitoring Network Report
EWG submits comments to California Department of Pesticide Regulation on the 2023 Draft Air Monitoring Network Report urging the agency to present the data within the air monitoring report in a more...
EWG letter to the National Environmental Justice Advisory Council urging the ban the use of paraquat
Attached is EWG's letter to the Environmental Protection Agency's National Environmental Justice Advisory Council, urging the EPA to take swift and decisive action to ban the use of paraquat.
EWG submits comments to USDA on the Greenhouse Gas Technical Assistance Provider and Third-Party Verifier Program
EWG submits comments to the United States Department of Agriculture on the agency’s Greenhouse Gas Technical Assistance Provider and Third-Party Verifier Program.
EWG comments to EPA on paraquat dichloride
The Environmental Working group submits comments to the EPA on paraquat dicholoride, or paraquat, urging the agency to ban the use of this toxic herbicide.