Kentucky Bill Limiting Environmental Regulations Advances

Legislation would restrict state from setting protections stricter than federal minimums

Published on Feb. 25, 2026

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A bill moving through the Kentucky General Assembly would limit the state's ability to establish environmental regulations more stringent than federal minimums. Supporters argue the bill provides predictability for businesses, while opponents warn it could endanger air quality, clean water, and public health.

Why it matters

The legislation is part of a broader trend of deregulatory action in Kentucky, with lawmakers weighing environmental deregulation and state alignment with minimum federal standards. This comes amid the Trump administration's efforts to weaken EPA regulations on air and water pollution.

The details

Senate Bill 178 would prohibit Kentucky from setting environmental rules more strict than federal minimums and require new protections to be supported by "best available science" showing a "direct causal link" between exposure and public harm. Opponents say this would restrain the state's ability to regulate emerging contaminants like PFAS and delay protections until after public health is impacted.

  • The bill was approved in committee on February 25, 2026, and is now headed to the full Senate.
  • In 2025, the Kentucky General Assembly passed a bill that removed key protections for groundwater and wetlands, despite opposition from the state's Energy and Environment Cabinet.

The players

Sen. Greg Elkins

The Republican sponsor of Senate Bill 178, who argues the bill "promotes sound science and regulatory decision making" and "promotes stability for businesses".

Audrey Ernstberger

An attorney with the Kentucky Resources Council, who said the legislation would amount to "a sweeping restriction on Kentucky's authority to protect the environment and public health".

Michael Washburn

The executive director of the Kentucky Waterways Alliance, who said the bill "would make it significantly harder for the state to regulate emerging contaminants, respond to new pollution threats, or adopt proactive safeguards to protect drinking water and community health".

Kentucky Chamber of Commerce

A business group that supports the bill, arguing it provides "important predictability to businesses".

U.S. Chamber of Commerce

A national business group that has also supported similar legislation in other states, according to the report.

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What they’re saying

“It's very difficult for businesses to try to operate in a patchwork system where ― even after EPA has said 'Here's the rule that everyone needs to follow' ― that we have 50 states all trying to do their own thing. Businesses just can't operate in that environment.”

— Mark Behrens, Appearing on behalf of the U.S. Chamber of Commerce and Kentucky Chamber (courier-journal.com)

“It is a fundamental shift away from prevention and toward a system that requires damage to occur before it can be addressed. Kentuckians expect their state to protect their water and their health. SB 178 would make that far more difficult.”

— Michael Washburn, Executive Director, Kentucky Waterways Alliance (courier-journal.com)

What’s next

The bill will now move to the full Kentucky Senate for consideration.

The takeaway

This legislation is part of a broader trend in Kentucky of deregulation and alignment with minimum federal environmental standards, raising concerns from advocates about the potential impacts on public health and the environment.