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With 18 offices, from New York to Los Angeles and Seattle to Orlando, we live and work in communities all over the U.S., collaborating across locations, disciplines and even borders. Our experienced, highly ranked lawyers serve businesses wherever they are and wherever they want to go.

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Pro Bono

Am Law 100 firm with practices in Business, Digital Assets and Data Management, Intellectual Property, Labor & Employment, Litigation and Tax.

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BakerHostetler Continues Strategic Growth, Adding Commercial Litigation Partner Brad Pensyl in New York

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The Weekly Hill Update

Teresa Goody Guillén Presents at TOKEN2049 Conference in Dubai

Blockchain Monitor

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Weekly Blockchain Blog – April 28, 2025

With significant experience in the automotive, transportation and fuel industries, Lindsey regularly advises clients on emissions violations, rulemaking challenges, products liability and warranty claims, import and export violations, vehicle and fleet certification, reporting auxiliary emissions control devices, battery compliance, CAFE standards and credits, field fixes, recalls, engine and vehicle labeling, zero-emission vehicles and voluntary disclosure statements. She has appeared before various law enforcement authorities, including the Department of Justice, the Environmental Protection Agency, the National Highway Traffic Safety Administration, the California Air Resources Board and various state attorneys general.

Lindsey’s work with regulatory authorities and knowledge of environmental responsibilities have made her a valuable asset to clients and she is frequently called upon to assist with on-site response and investigation efforts to assist in the management of regulatory and legal obligations. She has assisted clients in complying with EPCRA reporting obligations, whistleblower investigations and performing root cause analysis.

Lindsey has provided regulatory advice to clients on permits under Section 404 of the Clean Water Act, cost-sharing under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), marine fisheries compliance under the Magnuson-Stevens Fishery Conservation and Management Act, drafting environmental impact statements as required by the National Environmental Policy Act (NEPA) and complying with the Toxics Release Inventory (TRI).

Through her work with major manufacturers, Lindsey has developed an expertise addressing the legal, regulatory and economic issues arising under federal and state pesticide, chemical, emerging contaminants, consumer protection, advertising and food safety laws. Lindsey has counseled clients on all areas of the law involving the manufacturing, marketing and use of commercial chemicals and toxic substances, including product development, testing, labeling, right-to-know obligations, transportation, supply chain and importation issues. From PFAS to pesticides, Lindsey frequently helps clients navigate compliance with TSCA, FIFRA and state regulations which often lack a uniform approach.

Lindsey is also a skilled commercial litigator and has represented clients in the automotive, banking, oil &amp; gas, financial services and manufacturing industries in all phases of litigation. Most of her litigation experience has been on behalf of national corporations in multidistrict litigations facing claims related to false advertising or products liability. In addition to her experience at the trial court level, Lindsey regularly drafts briefings to be submitted to the Courts of Appeals.

Lindsey is committed to public service and pro bono work. In 2018, she successfully represented a wrongfully convicted client who was released from prison after nearly 25 years. She has also worked to expunge criminal records and to defend victims of child abuse. As an Army wife, Lindsey has worked with many veterans and military family legal groups and focuses on upgrading military discharge statuses.

core/freeform

J.D., Harvard Law School, 2015, 

M.A., English, University of South Dakota, 2012, 

B.A., History and English, Missouri Valley College, 2010, 

<ul>
<li>New York Legal Aid Society: Pro Publica Award (2018)</li>
<li>Capital Pro Bono Honor Roll: Honors level (2023) </li>
</ul>

Washington, D.C.

Energy Emergency and Environmental Rollbacks: What Recent Executive Orders Mean for Environmental Policies and Regulated Industry

Regulating Automotive Emissions: Part V – The Future of Mobile Source Enforcement

Lindsey Simmons Comments on How Trump’s EV Attacks Could Boost Sales

Regulating Automotive Emissions: Part IV – Emissions Litigation To Watch

Regulating Automotive Emissions: Part III – The Future of the Electric Vehicle Industry

The Great Environmental Divide – What to Expect from the Harris and Trump Administrations

More PFAS Definitions, More Problems — Using PFAS Definitions to Avoid Pitfalls in Compliance, Contracting, Insurance Coverage and Permitting

InsideEPA Article Cites Blog Post by Matthew Thurlow, Lindsey Simmons, Tanner Gattuso

ADventures in Law

New State Laws Limiting the Use of PFAS in Consumer Products Continue to Proliferate

The Differing Regulatory Definitions of PFAS-Containing Products

Maine Narrows and Delays PFAS Regulation

New EPA PFAS Reporting Rule May Pose Challenge for Manufacturers and Importers

BakerHostetler Team Files Amicus Brief on Behalf of Ohio Chamber of Commerce

PFAS Reporting Obligations in 2023: Key Issues and Considerations

EPA Designates PFOS and PFOA as Hazardous Substances

Litigation

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Automotive/Mobility

Environmental

White Collar, Investigations and Securities Enforcement and Litigation

Superfund and Contaminated Properties

Emerging Contaminants and Chemicals

Catastrophic Accident Response

Clean Air Act

Enterprise Issues

PFAS Advice and Advocacy

Advertising, Marketing and Digital Media

Litigation, Enforcement and White-Collar Criminal Defense
<ul>
<li>Assisted original equipment manufacturer in defense and resolution of an industry-wide investigation and government enforcement dispute concerning the use of defeat devices in passenger vehicles.</li>
<li>Successfully represented refinery in rulemaking challenge to EPA’s application of the RFS Small Refinery Exemption before the D.C. Circuit.</li>
<li>Defended aftermarket manufacturer in enforcement matter against EPA, CARB and DOJ for alleged non-disclosure of AECD devices and other Title II violations.</li>
<li>Represented automotive manufacturer in NHTSA enforcement matter and corresponding multidistrict litigation with underlying product liability and consumer protection claims.</li>
<li>Served as trial counsel in defending prominent sports team and its owner in action challenging team’s relocation.</li>
<li>Part of team that served as national counsel for an OEM involved in a federal MDL concerning alleged violations of state consumer fraud and federal RICO laws related to alleged rupture risks in certain Takata airbag inflators.</li>
<li>Represented client in federal MDL and related state cases involving personal injury and class actions resulting from ignition switch recalls.</li>
<li>Assist healthcare client in developing litigation strategy related to potential PFAS exposures.</li>
</ul>
Internal Investigations 

<ul>
<li>Represented original equipment manufacturer in connection with international, federal and state regulators investigating emissions violations related to the use of defeat devices. 
</li>
<li>Represented international banking institution in connection with an Office of Foreign Asset Control investigation regarding alleged trading violations.</li>
<li>Represented pharmaceutical manufacturer in internal investigation related to whistleblower claims brought to the attention of the FDA.</li>
<li>Represented environmental laboratory in connection with a state-led investigation regarding alleged false results and contamination.</li>
</ul>
Regulatory Compliance
<ul>
<li>Provide guidance to consumer product companies in a variety of industries on federal and state laws regulating the use of PFAS.</li>
<li>Counsels public and private companies on toxic and hazardous materials reporting under TSCA and EPCRA.</li>
<li>Represented off-road and light and heavy-duty vehicle manufacturers on compliance with Title II federal regulations and CARB regulations.</li>
<li>Counsels automotive and mobile source clients on environment, health and safety responsibilities as it concerns the transportation and storage of Lithium-ion batteries.</li>
<li>Provide guidance to micromobility client on federal, state and local regulations governing the use, import, storage and transport of e-bikes and e-scooters.</li>
<li>Counsels automotive clients on voluntary reporting, disclosure statements, CAFE credit transactions and Certificates of Conformity.</li>
<li>Counsel international manufacturers on FIFRA pesticide registration for fungicide, biocides, herbicides and rodenticide products.</li>
<li>Counsel pesticide manufacturers and distributors on product labeling, advertising claims, antimicrobial claims, secondary packaging, as well as picture and logo compliance under FIFRA and related state regulations.</li>
</ul>