Thomas C. Berger, Environmental Attorney in Washington, District of Columbia
Washington, DC
Trusted environmental attorney serving Washington.
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Quick answer
Thomas C. Berger is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Environmental.
- Based in
- Washington, DISTRICT OF COLUMBIA
- Experience
- attorney
- Known for
- Environmental
- Handles Environmental matters from Washington, DISTRICT OF COLUMBIA.
- Recognized with Best Lawyers in America — Environmental Law (2026).
About Thomas C. Berger: Thomas C. Berger is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Environmental.
Areas of practice
Legal matters Thomas takes on
Thomas concentrates on environmental. Each area below outlines the kind of case Thomas handles, typical outcomes to expect, and how the intake process starts.
Environmental cases in Washington, District of Columbia
Thomas takes environmental matters in Washington, District of Columbia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Thomas agrees to represent you.
Biography
Meet Thomas C. Berger — environmental lawyer in Washington
Thomas C. Berger is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Environmental.
Thomas (Tom) Berger’s practice is based on an in-depth understanding of and experience with the chemicals, plastics, and electronics industries. As a preeminent practitioner with over 30 years of experience, Tom helps clients commercialize new chemical products and preserve supply chains for existing chemical products utilizing an interdisciplinary team approach combining law and science, with an emphasis on emerging technologies in the industrial and consumer chemicals areas.
Tom’s practice focuses almost exclusively on the Toxic Substances Control Act (TSCA). Tom leads clients through the TSCA section 5 premanufacture notification (PMN) approval process and negotiates the terms of resulting section 5(e) orders and significant new use rules (SNURs). He provides counsel to clients on major U.S. Environmental Protection Agency (EPA) enforcement matters, assists companies in preparing for compliance inspections and responding to information requests and subpoenas, and defends Agency enforcement actions.
As an active member of the environmental and chemical industries and legal community, Tom was extensively involved in efforts to “reform” TSCA, and has in-depth and day-to-day experience with all aspects of TSCA, including rulemaking/advocacy, test rule/order, section 5 PMN, TSCA Inventory, Chemical Data Reporting (CDR), and section 6, as well as confidential business information (CBI), section 8 recordkeeping and reporting, and import/export issues.
Tom’s technical background allows him to undertake matters that involve complex chemistry, chemical nomenclature, and chemical engineering issues. Tom co-authored an amicus curiae brief for the United States Supreme Court in Hoechst Celanese v. United States, 128 F.3d 216 (4th Cir. 1997), as well as four technical papers on polychlorinated dibenzo-p-dioxins and furans (“dioxin”).
Tom is a recognized leader in conducting extensive voluntary TSCA compliance audits, often conducted as part of corporate mergers or acquisitions. Since its inception in 1995, Tom has assisted hundreds of clients successfully utilize EPA’s “Audit Policy” (as well as the “New Owner Policy”) to disclose and obtain up to 100% gravity-based monetary penalty mitigation for a wide variety of TSCA violations.
Tom is a frequent lecturer and author on chemical notification, chemical regulation, liability management, auditing, enforcement, and TSCA reform issues, and is regularly quoted as an expert in the trade press. He was a contributing author of Environmental and Workplace Safety, A Guide for University, Hospital, and School Managers (Van Nostrand Reinhold, 1996).
Tom has a Chemical Engineering background, and, prior to joining Keller and Heckman, worked as an engineer for a major international chemical manufacturing company.
Working with Thomas on a environmental matter
Thomas (Tom) Berger’s practice is based on an in-depth understanding of and experience with the chemicals, plastics, and electronics industries. As a preeminent practitioner with over 30 years of experience, Tom helps clients commercialize new chemical products and preserve supply chains for existing chemical products utilizing an interdisciplinary team approach combining law and science, with an…
Clients Thomas works with
Thomas reviews new inquiries case-by-case for environmental matters in Washington and the surrounding District of Columbia area.
Credentials
Education, bar admissions, and languages
Michigan State University
B.S.
The George Washington University
J.D. · 1993
Jurisdictions
Thomas's state bar admissions
Indiana, Indiana Sta
ACTIVE
Pennsylvania, Pennsy
ACTIVE
District of Columbia
ACTIVE
Thomas studied at B.S. in Michigan State University and J.D. in The George Washington University.
Law school and academic background
Thomas completed B.S. in Michigan State University and J.D. in The George Washington University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Thomas runs in District of Columbia is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Thomas has received 5 formal recognitions from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Environmental Law
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Administrative / Regulatory Law
2026
Best Lawyers in America — Special Focus:
2026
Best Lawyers in America — Chemical Control
2026
Legal awards and honors
Best Lawyers in America — Environmental Law (2026). Best Lawyers in America — Additional Areas of Practice: (2026). Best Lawyers in America — Administrative / Regulatory Law (2026). Best Lawyers in America — Special Focus: (2026). Best Lawyers in America — Chemical Control (2026).
Locations
Thomas C. Berger's office in Washington
Thomas's primary office is at 1001 G Street, NW, Suite 500 West, Washington, District of Columbia, 20001. In-person meetings are by appointment; a phone intake usually comes first.
1001 G Street, NW, Suite 500 West
Washington, District of Columbia 20001
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Schedule your consultationHiring guide
How to hire Thomas C. Berger — what to expect in your first consultation
Working with a new environmental attorney should feel structured. Here's how the first two conversations with Thomas usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Thomas charges for the initial consult. That fee is credited toward representation if you retain Thomas's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Thomas will tell you what matters and what doesn't.
Questions to ask a environmental attorney in Washington, District of Columbia
A short list to run through before you commit: How many environmental matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Thomas
Thomas discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in environmental practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every environmental matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Thomas confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Thomas's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many environmental practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Thomas C. Berger
How much does it cost to hire Thomas for a environmental case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Thomas walks through the likely range during the consult so there are no surprises.
Does Thomas offer a free consultation?
Thomas charges for the initial consult; that fee is credited toward representation if you retain Thomas's office. Some environmental attorneys offer free consults — check Thomas's current terms during booking.
How long do environmental cases in District of Columbia typically take?
Simple environmental matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Thomas gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Thomas take my case if I'm outside Washington?
Thomas is licensed in District of Columbia. Matters governed by District of Columbia law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Thomas will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Thomas?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Thomas will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Thomas accepting new environmental clients right now?
Thomas's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Environmental attorneys serving Washington and Belize City in District of Columbia
Thomas handles environmental matters throughout District of Columbia. Each city below is a direct link into the search page for verified environmental attorneys in that community.
More counsel
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If Thomas's intake is full or the fit isn't right, these environmental attorneys in Washington handle similar matters. Every profile below is verified and open to consultations.

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