About

Lauren Hammond is an environmental law attorney with nearly a decade of experience managing and enforcing complex regulatory matters under federal and state laws. As…

Lauren Hammond is an environmental law attorney with nearly a decade of experience managing and enforcing complex regulatory matters under federal and state laws. As a former Senior Clean Air Act attorney for the U.S. Environmental Protection Agency, Lauren counseled, litigated, and negotiated high profile cases under the Clean Air Act, Clean Water Act, and Resource Conservation and Recovery Act.

Lauren has deep experience enforcing and addressing compliance matters with the oil and gas industry across the Mountain West, and on a national scale developing and leading the EPA’s National Enforcement and Compliance Initiative to mitigate air impacts from oil and gas.

Additionally, Lauren advised on numerous New Source Performance Standards for the oil and gas sector and other rulemakings under the Clean Air Act.

Lauren’s government experience also involved work with municipalities and construction companies on water quality issues, air quality issues related to diesel engine defeat device investigations, oil spill cleanup and spill prevention with gasoline distributors, waste cleanup related to oil wastewater disposal facilities, and municipal landfill air quality investigations. Lauren has led more than two dozen enforcement actions and investigations and draws from this breadth of experience to provide effective counsel on a diversity of environmental issues.

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On Feb. 12, 2026, the U.S. Environmental Protection Agency (EPA) announced its final rule (published at 91 Fed. Reg. 7686) rescinding the 2009 Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean  Air Act, 74 Fed. Reg. 66496 (Dec. 15, 2009) (Endangerment Finding) and all subsequent federal greenhouse gas (GHG) emission standards for vehicle and engine model years 2012 and onward that relied on the Endangerment Finding.

About

Lauren Hammond is an environmental law attorney with nearly a decade of experience managing and enforcing complex regulatory matters under federal and state laws. As…

Lauren Hammond is an environmental law attorney with nearly a decade of experience managing and enforcing complex regulatory matters under federal and state laws. As a former Senior Clean Air Act attorney for the U.S. Environmental Protection Agency, Lauren counseled, litigated, and negotiated high profile cases under the Clean Air Act, Clean Water Act, and Resource Conservation and Recovery Act.

Lauren has deep experience enforcing and addressing compliance matters with the oil and gas industry across the Mountain West, and on a national scale developing and leading the EPA’s National Enforcement and Compliance Initiative to mitigate air impacts from oil and gas.

Additionally, Lauren advised on numerous New Source Performance Standards for the oil and gas sector and other rulemakings under the Clean Air Act.

Lauren’s government experience also involved work with municipalities and construction companies on water quality issues, air quality issues related to diesel engine defeat device investigations, oil spill cleanup and spill prevention with gasoline distributors, waste cleanup related to oil wastewater disposal facilities, and municipal landfill air quality investigations. Lauren has led more than two dozen enforcement actions and investigations and draws from this breadth of experience to provide effective counsel on a diversity of environmental issues.

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