EPA
Sen. Carroll Urges Congress To Clarify EPA Authority, Warns Of Economic Impact On Arizona

February 1, 2026

By Matthew Holloway |

Arizona Senate Majority Whip Frank Carroll (R-LD28) introduced a measure on Tuesday, urging the U.S. Congress to clearly define and limit the Environmental Protection Agency’s (EPA) regulatory authority. Carroll and his cosponsors argue that ambiguous federal power threatens jobs and economic growth in Arizona. The proposal, SCM 1004, was advanced by the Arizona Senate Republican Caucus earlier this week.

Carroll’s measure calls on Congress to affirm its role in setting national environmental policy and to draw explicit boundaries around the EPA’s authority under federal law. The memorial highlights that, under the Clean Air Act, the EPA is charged with setting and reviewing National Ambient Air Quality Standards (NAAQS) every five years to protect public health and welfare, but argues that compliance requirements have grown burdensome for businesses and workers.

“Americans deserve clean air, land, and water, but they also deserve an economy that can grow without unnecessary federal interference,” Carroll said in a statement distributed by the Arizona Senate Republican Caucus. He added that the measure urges Congress to ensure EPA regulations are “grounded in law and sound science” and do not impose undue economic restrictions.

In additional remarks included in the memorial, Carroll said he is seeking to define the limits of EPA authority to prevent what he described as regulatory overreach.

“I am working to clearly define the EPA’s powers to prevent regulatory overreach that negatively impacts Arizona’s economy,” Carroll said. “While the Clean Air Act allows for specific emissions regulations, the EPA must not exceed its authority or violate fundamental principles of separation of powers. By preventing bureaucratic overreach, we can protect both the environment and the economic opportunities Arizona families and businesses rely on.”

SCM 1004 directs the Arizona Secretary of State to transmit copies of the memorial to leadership in both chambers of Congress and all members of Arizona’s federal delegation. The measure notes that while the EPA’s mission is to enforce environmental laws as intended by Congress, concerns over overreach have prompted states to call for clearer statutory limits on the agency’s powers.

Carroll’s push reflects broader national debates over the scope of federal environmental regulation. Critics of recent EPA proposals have warned that aggressive regulatory action could affect industries including agriculture, energy production, and water resources. Such debates have included congressional hearings examining the consequences of EPA actions on sectors like American agriculture and rural economies.

The memorial challenges key assumptions underlying EPA policies formulated under Democratic administrations and proponents of policy such as the ‘Green New Deal’, stating:

  • “Greenhouse gases like CO2 and methane are not acutely toxic like other hazardous pollutants and have no direct impact on human health;”
  • “There is no consensus as to whether global warming is a problem or a benefit or how current temperatures fit into the broader climate context;”
  • “Global temperatures, droughts, floods and hurricanes have not increased with increasing global CO2 emissions;”

The memorial further refutes the EPA’s authority regarding greenhouse gas emissions, stating directly: “The EPA has no explicit statutory authority to regulate greenhouse gases.”

The memorial comes amid ongoing statewide discussions about the balance between environmental protection and economic growth, with Arizona lawmakers questioning the appropriate reach of federal agencies in areas ranging from air and water quality to land use and energy development.

SCM 1004 was co-sponsored by a group of Republican Arizona Senators, including Hildy Angius (R-LD30), David Gowan (R-LD19), Kevin Payne (R-LD27), Janae Shamp (R-LD29), and Thomas “T.J.” Shope (R-LD16).

Matthew Holloway is a senior reporter for AZ Free News. Follow him on X for his latest stories, or email tips to Matthew@azfreenews.com.

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