Chemical Safety Law Faces Fresh Rollback Push In Congress

A new draft bill in the U.S. Senate seeking to amend the Toxic Substances Control Act (TSCA) has ignited strong opposition from public health and environmental groups, who warn the proposal could significantly weaken the nation’s core chemical safety protections.

The legislation, released ahead of a March 4 hearing by the U.S. Senate Committee on Environment and Public Works, proposes changes to the 2016 bipartisan overhaul of TSCA under the Frank R. Lautenberg Chemical Safety for the 21st Century Act. According to the Alliance for Health and Safe Chemicals, the draft would fast-track approvals for new chemicals, reduce the rigour of safety reviews, expand industry influence over regulatory decisions and limit states’ ability to enforce stronger protections.

A similar proposal introduced earlier in the U.S. House of Representatives has raised concerns about a broader push to roll back federal oversight of toxic substances.

Since its 2016 modernization, TSCA has strengthened the authority of the Environmental Protection Agency (EPA) to evaluate chemicals before they enter the market and to restrict those found to pose unreasonable risks. The agency has used this authority to ban asbestos, prohibit methylene chloride in certain applications, restrict trichloroethylene (TCE), and block certain PFAS from entering commerce.

Advocates argue that reopening the law now could undo hard-won gains. The Alliance contends the proposed changes would make it easier for potentially dangerous chemicals to enter homes, schools and workplaces, while creating regulatory uncertainty for businesses that have already adapted to the current framework. They emphasize that bipartisan public support for strong chemical safeguards remains high.

Member organizations point to mounting health concerns linked to chemical exposure, including cancer, infertility, developmental delays and respiratory diseases. They also highlight the disproportionate burden on fence-line communities and indigenous populations, who often face higher cumulative exposure to toxic substances.

Critics of the draft bill say it shifts the balance away from science-based decision-making and public health protections, handing greater leverage to chemical manufacturers. They are urging lawmakers to preserve the integrity of TSCA and reject any amendments that would weaken EPA oversight.

As Congress prepares for debate, the battle over TSCA underscores a broader question: whether the U.S. will strengthen its chemical safety framework or roll back protections at a time when concerns about toxic exposure remain front and centre.