Dianne R. Phillips is an attorney in Holland & Knight's Boston office who concentrates her practice in litigation, regulatory, energy and environmental law. As former assistant general counsel for Suez LNG North America LLC and its wholly owned subsidiary, Distrigas of Massachusetts LLC, Ms. Phillips was involved in all aspects of regulatory compliance for the nation's oldest, continuously operating liquefied natural gas (LNG) import terminal located in Everett, Mass., including safety and security. Her LNG experience includes advising clients with respect to specialized regulatory compliance under 49 C.F.R. Part 193 and NFPA 59A.

Ms. Phillips' environmental practice focuses on brownfields redevelopment and remediation, including former military installations, former manufactured gas plants (MGPs) and vapor intrusion sites. She regularly advises developers, lenders and investors in real estate transactions involving contaminated property, enforcement defense, regulatory compliance, due diligence, and complex project development and permitting matters, including those under the National Environmental Policy Act (NEPA) and the National Pollutant Discharge Elimination System (NPDES), among others. Ms. Phillips regularly advises clients – including municipalities, industry and construction contractors – subject to federal and state environmental regulation, including the Toxic Substances Control Act (TSCA), the Clean Water Act (CWA), the Resource Conservation and Recovery Act (RCRA), the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Coastal Zone Management Act (CZMA), as well as many state law counterparts.

Ms. Phillips' energy practice focuses on LNG terminal operations, natural gas pipeline permitting and operations, construction, and eminent domain. Her litigation experience involves hazardous waste disputes, civil and administrative enforcement defense under federal and state environmental regulatory programs, defense of citizen suits under the CWA and RCRA, as well as construction, land use, permitting, utilities, regulatory, toxic tort and contract matters.

Representative Experience

Representative Engagements

  • Provided environmental permitting advice in connection with interstate natural gas pipeline projects
  • Represented municipalities in connection with permitting disputes with project developers
  • Advised industrial dischargers in connection with National Pollutant Discharge Elimination System (NPDES) permit renewals
  • Provided environmental due diligence in connection with historic property redevelopment
  • Provided environmental due diligence in connection with brownfields redevelopment
  • Provided representation of construction contractors in connection with stormwater management, air pollution control, asbestos abatement and related regulatory compliance requirements
  • Represented owners and operators in connection with state and federal hazardous waste requirements
  • Representation of colleges and universities in connection with environmental compliance
  • Represented condominium associations in connection with remediation requirements
  • Represented clients in recent Superfund engagements, including advising a company in a dispute over the interpretation of a consent decree, representing the current owner in connection with the project development of a delisted Superfund site undergoing a Five-Year Review, and representing a municipal buyer of a delisted Superfund site
  • Defended a client against a Clean Water Act citizen lawsuit


  • Albany Law School, J.D., summa cum laude
  • Cornell University, B.S.
Bar Admissions/Licenses
  • Massachusetts
  • New York
Court Admissions
  • U.S. Supreme Court
  • All State Courts in New York
  • U.S. District Court for the District of Massachusetts
  • All State Courts in Massachusetts
  • U.S. Court of Appeals for the First Circuit
  • Environmental Bankers Association
  • ASTM International, E50 Committee (Environmental Assessment, Risk Management and Corrective Action)
  • NAIOP Massachusetts, Associate Member
  • Massachusetts LSP Association, Associate Member
  • Boston Bar Association
  • Albany Law School National Alumni Council, Past President
  • Albany Law School Board of Directors, 1995-2000, 2017-2022; Committee on Academic Affairs, Chair, 2020-2021
  • GLBTQ Legal Advocates & Defenders, Inc. (GLAD), formerly known as Gay & Lesbian Advocates & Defenders, President, 2012-2016; Vice President, 2009-2011; Board Member, 2006-2019
  • Annual Spirit of Justice Awards Dinner, Co-Chair, 2007-2008
Honors & Awards
  • The Best Lawyers in America guide, Environmental Law, 2020-2022; Litigation – Environmental, 2022
  • Martha H. Ziegler Founders Award, Federation for Children with Special Needs, 2020
  • Holland & Knight Pro Bono All-Star, 2020
  • YW Boston's Academy of Women Achievers, 2014
  • Holland & Knight Public and Charitable Service All-Star, 2014
  • Massachusetts Super Lawyers magazine, 2012-2014
  • Top Woman of Law, Lawyers Weekly, 2011
  • Great Egret Leadership Award, Save Bristol Harbor, 2011
  • Kate Stoneman Award, Albany Law School, 2004
  • Law Student Award, Bureau of National Affairs, 1988
  • Trustees Award, Albany Law School, 1988
  • Martindale-Hubbell AV Preeminent Peer Review Rated


Speaking Engagements