Liz Williamson has more than 20 years of environmental law experience. The cornerstone of Liz’s practice is advising clients on Clean Air Act compliance, regulatory developments, and enforcement. She provides advice on federal and state Title V permitting, emissions and compliance, and litigation risk. She represents clients throughout the United States in federal consent decree implementation. Liz has proactively audited facilities for environmental compliance.
Liz Williamson has more than 20 years of environmental law experience. The cornerstone of Liz’s practice is advising clients on Clean Air Act compliance, regulatory developments, and enforcement. She provides advice on federal and state Title V permitting, emissions and compliance, and litigation risk. She represents clients throughout the United States in federal consent decree implementation. Liz has proactively audited facilities for environmental compliance.
Liz began her career as an environmental litigator. She represented clients in federal and state environmental cases across the country. Liz has taken and defended dozens of depositions; briefed complex environmental issues; and argued motions in these proceedings. Five years into her career, she was seconded as in-house environmental to a major power generation company. In this role, Liz provided extensive air pollution advice to internal clients.
Liz has a boots-on-the-ground approach. She strives to understand the industrial process first so that she can tailor her legal advice to the business. She has developed key contacts within U.S. Environmental Protection Agency (EPA) headquarters and at many EPA regional offices.
Liz frequently speaks on regulatory developments, New Source Review and best practices. She is also listed among the "Legal Elite" from Virginia Business magazine (2020) and in Chambers USA for Environmental Law (2021-present).
Liz received both her Juris Doctor degree, with honors, and her Bachelor of Science degree, magna cum laude, from Florida State University. She is admitted to practice in Virginia, the District of Columbia, North Carolina, Georgia and Florida.
- Provides ongoing compliance advice to industry clients under New Source Review consent decrees, requiring partnership with EPA Region and headquarters attorneys, negotiation of modifications and compliance issues.
- Performed an environmental audit of client’s two industrial facilities for compliance with air regulations, which involved on-site analysis, employee interviews, regulatory review, and document review.
- Developed and obtained an air permit for a fuel conversion to an existing boiler, including analysis of modeling results, BACT research, emissions analysis, and negotiation with the state.
- Created and leads client’s New Source Review risk avoidance programs designed to review the company’s projects at its plants for compliance and litigation risk.
- Settled six high profile Clean Air Act enforcement cases with the US EPA involving New Source Review, Title V, and opacity claims.
- Prepared detailed regulatory comments for submittal in numerous national air dockets, including, but not limited to, NSR reform, Clean Power Plan, Regulation 2 for 1, and Startup Shutdown and Malfunction.
- Performed a New Source Review audit of a chemical facility, involving plant interviews and an extensive records review of high profile capital improvements
- Represented manufacturing sector trade association on all facets of air regulation, which included briefing association during regular meetings, draft of state and national rulemaking comments, and negotiation on behalf of association before state and US EPA regulators.
- Advocated to the Environmental Protection Agency and Office of Management and Budget for modifications to the boiler MACT rule on behalf of the Small Business Administration and an industry trade association.
- Represented a chemical industry client in a challenge at the U.S. Court of Appeals for the District of Columbia Circuit to the polyethylene terephthalate (PET) maximum achievable control technology (MACT) standards.
- Represented utility in Clean Air Act federal court trial concerning New Source Review and Title V permitting claims in Pennsylvania v. Allegheny Power.
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12.27.2022
Williams Mullen Represents Cox Transportation Services in Acquisition of Texas-Based Freight Transporter
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07.29.2022
Firm Represents Family-Office-Based Investor in Acquisition of New York-Based Century Linen & Uniform
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07.01.2022
The U.S. Supreme Court Cut EPA’s Authority To Regulate Greenhouse Gases Using Clean Air Act Section 111(d)
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06.02.2022
39 Williams Mullen Attorneys, 14 Practice Areas Recognized in Chambers USA 2022
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06.02.2022
EPA Proposes Unprecedented NOx Ozone Season Reductions to Address Good Neighbor Obligations for the 2015 Ozone NAAQS
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03.25.2022
Environmental Notes - March 2022
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03.25.2022
Political Ping Pong? What’s Going On With the Utility Sector’s Clean Air Act Mercury and Air Toxics Standards?
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03.23.2022
Williams Mullen Represents Grenova in Recapitalization
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01.20.2022
Environmental Notes - January 2022
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01.19.2022
Welcome ASTM E1527-21: New Phase I Guidelines Released
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12.07.2021
Williams Mullen Manufacturing Edge: Environmental Enforcement in the Current Regulatory Climate
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07.22.2021
Top Five Potential Air Permitting Reforms: How Air Permitting in Virginia Is Poised for Change
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07.22.2021
Environmental Notes - July 2021
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05.26.2021
40 Williams Mullen Attorneys, 12 Practice Areas Recognized in Chambers USA 2021
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03.15.2021
Environmental Notes - March 2021
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03.15.2021
Can You Resuscitate an Elderly Phase I?
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01.11.2021
Environmental Notes - January 2021
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01.11.2021
Good Neighbor Ozone Transport in 2021: What’s the Fuss for NOx Sources in Upwind States?
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12.31.2020
Williams Mullen Team Represents Fire Protection Systems Provider in Recapitalization
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12.16.2020
Williams Mullen Team Represents Virginia American Industries in Sale
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12.01.2020
61 Williams Mullen Attorneys Named to Virginia Business Magazine’s Legal Elite for 2020
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10.27.2020
Environmental Notes - November 2020
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10.26.2020
Scared of What Your Air Permit Really Means?: Top 5 Pitfalls
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07.16.2020
Environmental Notes - July 2020
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07.14.2020
Virginia Regional Carbon Trading: Ready, Set, Join RGGI!
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05.08.2020
Crystal-balling the Coal Ash Closure Regulations for the Electric Generation Sector
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05.08.2020
Environmental Notes - May 2020
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01.13.2020
Environmental Notes - February 2020
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01.13.2020
Virginia Breaking Blue: Spotlight on Air Issues
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10.29.2019
Environmental Notes - November 2019
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10.29.2019
Why Coal Ash Regulation Should Be on Everyone’s Watch List
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08.05.2019
Williams Mullen Represents The C.F. Sauer Company in Sale to Private Equity Firm
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07.18.2019
Environmental Notes - August 2019
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07.16.2019
A Road Map to Effective Use of Environmental Lawyers and Consultants
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06.05.2019
Environmental Notes - June 2019
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06.05.2019
The Risk Game: Environmental Litigation Isn’t All Chance
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04.01.2019
Virginia is One Step Closer to State Regulation of Carbon Emissions
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03.29.2019
Environmental Notes - April 2019
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12.19.2018
Environmental Notes - January 2019
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10.01.2018
Environmental Notes - October 2018
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10.01.2018
Frequent TSCA Questions: Chemical Processor Reporting
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10.01.2018
Deconstructing Clean Air Act Stationary Source Aggregation: EPA Issues New Interpretation of “Adjacency”
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09.07.2018
Williams Mullen’s Environment & Natural Resources Group to Serve as Virginia Manufacturers Association’s Air Regulation Legal Counsel
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06.26.2018
Time to Make a Change: Deconstructing Clean Air Act Stationary Source Aggregation
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06.26.2018
Environmental Notes – July 2018
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05.02.2018
Environmental Notes - May 2018
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05.01.2018
Clean Air Act New Source Review in 2018: Re-thinking Your Strategy for Compliance
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03.16.2018
Liz Williamson Quoted in Law360 on EPA's New Source Review Guidance
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02.13.2018
Environmental Notes - March 2018
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02.13.2018
Round-up of Clean Air Developments from 2017
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11.20.2017
Environmental Notes - November/December 2017
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11.20.2017
Deputy Assistant Administrator for EPA’s Office of Water Provides Environmental Policy Insights
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10.13.2017
Law360: Williams Mullen Brings On Two Environmental Partners
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10.12.2017
Williams Mullen Expands Environmental Practice with Liz Williamson and Jay Holloway
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07.28.2017
Liz Williamson Talks Clean Air Act with Law360
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11.20.2020
CLE Institute 2020
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11.19.2020
CLE Institute - Environmental Risk Mitigation Strategies in Real Property Transactions
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07.10.2020
NSR Settlements and Consent Decree Implementation - Energy, Utility & Environmental Conference
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07.10.2020
Clean Water Act Citizen Suit Litigation Affecting Utilities - NRECA Generation and Transmission (G&T) Legal Conference
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07.10.2020
Good, Gridlock, Goals - Clean Air Act Seminar
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07.10.2020
Today’s Environmental Issues - Burns & McDonnell Generation Symposium
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07.10.2020
Is NSR Reform Possible? Settlement Trends and Your Real NSR Risk - Energy, Utility & Environmental Conference (EUEC)
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07.10.2020
Trumped - Burns & McDonnell Generation Symposium
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07.10.2020
Your Hot Environmental Issues List for 2018 - Burns & McDonnell Generation Symposium
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07.10.2020
Solar Panel End of Life - National Rural Electric Cooperative (NRECA) Tech Advantage Conference
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11.06.2018
Clean Air Act Reform 2018: The Good, The Gridlock and The Goals