Keith D. Greenberg is an arbitrator and mediator of private, public, and federal sector labor and employment disputes. He is a member of the National Academy of Arbitrators (NAA) and served a three-year term on its Board of Governors. He serves on a number of labor arbitration panels and rosters, including those maintained by the American Arbitration Association (AAA), the Federal Mediation and Conciliation Service (FMCS), and the National Mediation Board. Mr. Greenberg also serves on permanent labor arbitration panels in the private, public, and federal sectors, and regularly adjudicates disputes involving EEO and unfair labor practice complaints. He has presided as sole arbitrator and as the neutral member of tripartite panels. He regularly serves as a neutral overseeing representation elections. Mr. Greenberg is listed on employment arbitration panels maintained and administered by the AAA and the CPR Institute, among other rosters, as well as the AAA’s ERISA and MPPAA arbitration panels. He serves as the impartial Labor Relations Administrator for the Washington Suburban Sanitary Commission; for the city of Richmond, Virginia; and for Loudoun County, Virginia. He serves as the neutral Chairman of the Grievance Committee for the International Monetary Fund. Mr. Greenberg previously served as a Member of the Personnel Appeals Board for the United States Government Accountability Office (GAO).
Mr. Greenberg is an experienced mediator, serving as a member of the AAA’s roster of employment mediators and its panel of labor mediators. He also serves on the rosters of employment mediators for the United States Office of Congressional Workplace Rights; the U.S. Equal Employment Opportunity Commission’s RESOLVE internal ADR program; the U.S. Nuclear Regulatory Commission Early ADR Mediation Panel; the Cornell University Roster of Dispute Resolution Neutrals; the CPR Institute; and the American Health Lawyers Association, among others.
Mr. Greenberg has experience with videoconference arbitration and mediation proceedings and has served as a trainer for video arbitration and mediation programs sponsored by, among others, the NAA, the FMCS, the Labor and Employment Relations Association (LERA), the AAA, and the American Bar Association (ABA)’s Section of Labor and Employment Law. He serves as the Technology Coordinator for the NAA and is co-author of a chapter in Labor and Employment Arbitration (Bornstein, Gosline, Greenbaum, and Mayberry, Eds.) (Matthew Bender) on conducting video hearings.
Mr. Greenberg serves as the Neutral Co-Chair of the Webinar Committee of the ABA’s Section of Labor and Employment Law and was elected a Fellow of the American Bar Foundation. He is a Director of the NAA’s Research and Education Foundation. Among other professional activities, Mr. Greenberg currently serves as 1st Vice President for the Society of Federal Labor and Employee Relations Professionals (SFLERP). He previously served as President of Maryland LERA from 2021 to 2022; and as Co-Chair of the Steering Committee of the D.C. Bar’s Labor and Employment Law Community from 2016 to 2018. He is an active member of the Cornell ILR Alumni Association and the National Association of Railroad Referees. Mr. Greenberg is a member of the Cuban American Bar Association and is fluent in Spanish.
Mr. Greenberg has spoken and presented on numerous topics, including the use of technology in ADR, arbitrator ethics, issues arising in federal sector labor arbitration, current developments in labor and employment arbitration, advanced topics in labor and employment law, and advocate preparation for labor arbitration hearings. He has contributed to a number of publications by the ABA’s Section of Labor and Employment Law, and writes frequently on labor and employment and alternative dispute resolution topics. Mr. Greenberg previously co-taught a seminar on workplace ADR at the George Washington University Law School, and has served as a guest lecturer in courses on labor relations.
Mr. Greenberg spent several years in practice as an attorney in New York City in the labor and employment practice group of Duane Morris LLP prior to establishing his practice as a full-time neutral in the Washington, D.C. area. He is a graduate of the Cornell University School of Industrial and Labor Relations and of the University of Michigan Law School.
• Member, National Academy of Arbitrators
(Technology Coordinator; Board of Governors, 2021 – 2024)
• Neutral Co-Chair, Webinar Committee,
American Bar Association (ABA) Section of Labor and Employment Law
• First Vice President, Society of Federal Labor and Employee Relations Professionals (SFLERP)
• Fellow, American Bar Foundation
• D.C. Bar Labor and Employment Law Community (Co-Chair, 2016-2018)
• Employment Committee, ABA Section of Dispute Resolution (Co-Chair, 2016-2020)
• National Association of Railroad Referees
• Labor and Employment Relations Association (LERA)
(Maryland, Philadelphia, and Virginia Chapters) (Past President, Maryland Chapter)
• Cornell ILR Alumni Association
• Cuban American Bar Association
• Roster of Arbitrators, Federal Mediation and Conciliation Service
• Labor Arbitration and Labor Mediation Panels, American Arbitration Association
• Employment Mediation and Employment Mediation Rosters,
American Arbitration Association
• MPPAA/ERISA Arbitration Panel, American Arbitration Association
• CPR Panels of Distinguished Neutrals
(Employment Disputes, Mass Claims Employment, and at-Large ADR Panels)
• Roster of Labor Arbitrators, The Labor Relations Connection
• Roster of Labor Arbitrators, National Mediation Board
• Rosters of Labor Arbitrators, Mediators and Hearing Examiners,
District of Columbia Public Employee Relations Board
• Roster of Labor Arbitrators, Pennsylvania Bureau of Mediation
• Grievance Arbitration Panel, New Jersey Public Employment Relations Commission
• Voluntary Grievance Arbitration Panels, New York State Public Employment Relations Board
• Register of Neutrals, New York City Office of Collective Bargaining
• Impartial Labor Relations Administrator,
Washington Suburban Sanitary Commission (WSSC Water)
• Impartial Labor Relations Administrator, City of Richmond, Virginia
• Impartial Labor Relations Administrator, Loudoun County, Virginia
• Neutral Member, Teamsters/TForce Freight Grievance Committee
(Eastern, Central, and Southern Regions)
• United Parcel Service – International Brotherhood of Teamsters
National Arbitration Panel (Eastern Region)
• New York City Department of Education – United Federation of Teachers 3020-a Panel
• United States Postal Service – American Postal Workers Union Regular Arbitration Panels
• Maryland Transit Administration – Amalgamated Transit Union Local 1300 Arbitration Panel
• National Archives and Records Administration – AFGE Council 260, Local 2578
Arbitration Panel
• Major League Baseball – Major League Baseball Players Association Salary Arbitration Panel
• Pennsylvania State System of Higher Education –
Association of Pennsylvania State College & University Faculties Arbitration Panel
• Prince George’s County Public Schools and ACE-AFSCME, Local 2250 Arbitration Panel
• United States Department of Energy – National Treasury Employees Union Arbitration Panel
• United States Consumer Financial Protection Bureau – National Treasury Employees Union
Arbitration Panel
• Roster of Mediators, United States Office of Congressional Workplace Rights
• Roster of Neutrals, Scheinman Institute on Conflict Resolution, Cornell University ILR School
• Contributing Editor, The Developing Labor Law, Bloomberg BNA and Committee on Development of the Law Under the National Labor Relations Act, ABA Section of Labor and Employment Law (7th Edition; 2013 – 2019 Supplements to 6th and 7th Editions)
• Co-author, Conducting Video Hearings, in Labor and Employment Arbitration (Bornstein, Gosline, Greenbaum, and Mayberry, Eds.) (Matthew Bender)
• Contributor, The Fair Labor Standards Act, Bloomberg BNA and Federal Labor Standards Legislation Committee, ABA Section of Labor and Employment Law (2014 Supplement)
• Contributor, The Family and Medical Leave Act, Bloomberg BNA and Federal Labor Standards Legislation Committee, ABA Section of Labor and Employment Law (2014 Supplement)
• Contributing Author, FMLA Midwinter Meeting Report, ABA Section of Labor and Employment Law, Federal Labor Standards Legislation Committee, Subcommittee on the Family and Medical Leave Act (2012 – 2019, 2021)
• Contributing Author, FLSA Midwinter Meeting Report, ABA Section of Labor and Employment Law, Federal Labor Standards Legislation Committee, Subcommittee on the Fair Labor Standards Act (2013 – 2018, 2021)
• Author, Ethical Approaches to Dealing with Difficult People, Labor and Employment Law Newsletter, ABA Section of Labor and Employment Law, Winter 2019 (Volume 47, No. 2)
• Author, Clash of the Generations—Panel Discusses Managing Millennials in the Workforce, Labor and Employment Law Newsletter, ABA Section of Labor and Employment Law, Winter 2017 (Volume 45, No. 2)
• Author, NLRB Outlines New Arbitration Deferral Standards, Labor and Employment Law Newsletter, ABA Section of Labor and Employment Law, Summer 2015 (Volume 43, No. 4)
• Author, Battle Over Definitions Marks 2013–14 Court Term, Labor and Employment Law Newsletter, ABA Section of Labor and Employment Law, Winter 2015 (Volume 43, No. 2)
• Co-author, The Young Lawyer’s Guide to Preparing for Mediation, New Issues Regarding Neutral Disclosure and the Use of Technology in ADR, and ADR Rule Changes, ADR Roundtable, 2014 ABA Annual Meeting
• Co-author, Navigating the Murky Waters of Employment Waivers and Releases, New York State Bar Association Journal, February 2010
• Moderator, “Generative A.I. and Labor Arbitration – As the Case Develops, at the Hearing, and on the Arbitrator's Desk,” 77th Annual Meeting of the National Academy of Arbitrators, May 8, 2024
• Program Faculty, “Federal Sector: Arbitration – Law and Practice,” 43rd FMCS Arbitration Symposium, October 12, 2023
• Panelist, “Interactive Red Light/Green Light Arbitrator Panel,”
Virginia LERA Conference, September 14, 2023
• Panelist, “Paths to Becoming a Labor Arbitrator,” Cornell University ILR School,
Scheinman Institute on Conflict Resolution Webinar, June 5, 2023
• Panelist, “Advice from the Arbitrators,” Virginia LERA Webinar, March 9, 2023
• Presenter, “Past Practice in Labor Arbitration,” New York City Office of Collective Bargaining,
February 7, 2023
• Program Faculty, “Understanding and Defending ‘Past Practice’ Issues in Labor Arbitration,” American Arbitration Association Webinar, November 16, 2022
• Panelist, “Recent Developments Under the Federal Arbitration Act,” 16th Annual Labor and Employment Law Conference, ABA Section of Labor and Employment Law, November 10, 2022
• Presenter, Video Arbitration Hearings: the Basics, and Lessons Learned,” SFLERP Webinar, October 27, 2022
• Moderator, “Collective Bargaining in Virginia Counties & Cities,” Virginia LERA Conference, September 22, 2022
• Moderator, “Solving the Puzzle of “Just Cause” in Arbitration,”
American Arbitration Association Webinar, May 18, 2022
• Presenter, “Contract Interpretation in Labor Arbitration,” NYC Office of Collective Bargaining, January 24, 2022
• Moderator, “The Future of Virtual Hearings,” Joint Webinar by the National Academy of Arbitrators, ABA Section of Labor and Employment Law, and Association of Labor Relations Agencies, August 19, 2021
• Panelist, “Labor-Management Relationships,” LERA – Virginia Chapter, May 19, 2021
• Program Faculty, “Federal Sector: Arbitration – Law and Practice,” 41st FMCS Arbitration Symposium, May 6, 2021
• Panelist, “Current Developments in Labor and Employment Arbitration,” ADR in Labor & Employment Law Committee Mid-Winter Meeting, ABA Section of Labor and Employment Law, February 11, 2021
• Panelist, “Reinventing Your Career as a New or Young Labor and Employment Lawyer in 2020,” ABA Section of Labor and Employment Law Webinar, September 10, 2020
• Panelist, “Virtual Labor Arbitration Hearings,” American Arbitration Association Webinar, August 21, 2020
• Featured Presenter, “Witnesses via Videoconference,” National Academy of Arbitrators Webinar, July 13, 2020
• Panelist, “Virtual ADR from A to Z,” LERA Webinar, June 2, 2020
• Panelist, “Using Videoconferencing in Labor and Employment Arbitration and Mediation,” Joint Webinar by the National Academy of Arbitrators and ABA Section of Labor and Employment Law, May 7, 2020
• Panelist, “Navigating the COVID-19 Crisis as a New or Young Labor and Employment Attorney,” ABA Section of Labor and Employment Law Webinar, May 5, 2020
• Panelist, “Videoconferencing for Arbitrators,” Joint Webinar by the National Academy of Arbitrators and the Federal Mediation and Conciliation Service, April 2, 2020
• Panelist, “Problem Witnesses, Problem Advocates, Problem Arbitrators,” Successful Labor Arbitration Techniques 2019, American Arbitration Association, November 15, 2019
• Panelist, “How the Arbitrators Rule,” 40th FMCS Arbitration Symposium, May 10, 2019
• Moderator, “FLSA Exemptions after Encino Motorcars,” ABA Section of Labor and Employment Law CLE Webinar, April 10, 2019
• Moderator, “A Practical Guide to Arbitration,” ABA Section of Labor and Employment Law CLE Webinar, July 2018
• Speaker, “Preparing for Labor Arbitration in the Federal Sector, with a Focus on the Hearing and Beyond,” SFLERP 45th Annual Symposium, May 17, 2018
• Speaker, “Ethical Obligations Regarding Social Media: The Next Legal Frontier,” ADR in Labor & Employment Law Committee Mid-Winter Meeting, ABA Section of Labor and Employment Law, February 11, 2018
• Speaker, “Preparing for Labor Arbitration in the Federal Sector,” SFLERP 44th Annual Symposium, May 18, 2017
• Moderator, “Online Dispute Resolution in Labor and Employment: No Longer a Novelty – Ever the Norm?,” National Symposium on Technology in Labor and Employment Law, ABA Section of Labor and Employment Law, April 2017
• Speaker, “Traditional Labor Law Issues Impacting Employment Practitioners,” Fairfax Bar Association Employment Law Section, November 2, 2016
• Panelist, “Preparing for Your First (or Hundredth) Labor Arbitration,” District of Columbia Bar Labor and Employment Law Section, September 29, 2016
• Guest Lecturer, Labor Relations (HRMN 362), University of Maryland University College, May 4, 2016
• Speaker, “Attorney Fees in Federal Sector Arbitration,” SFLERP 43rd Annual Symposium, April 29, 2016
• Moderator, “Beyond the Basics: Advanced Issues in FMLA Law,” ABA Section of Labor and Employment Law CLE Webinar, February 24, 2016
• Panelist, “Current Developments in Labor and Employment Arbitration,” ADR in Labor & Employment Law Committee Mid-Winter Meeting, ABA Section of Labor and Employment Law, February 15, 2015
• Speaker, “ADR Professionals and Social Media – Considerations Regarding Disclosure,” Teleseminar, Association for Conflict Resolution – Workplace Section, January 23, 2015
• Speaker, “The Intersection of Arbitrator Disclosure and Social Media,” LERA – Maryland Chapter, October 22, 2014
• Moderator, “Bargaining Without Budgets,” Federal Sector Labor and Employment Law Committee Mid-Winter Meeting, ABA Section of Labor and Employment Law, February 11, 2014
• Co-Instructor, Labor & Employment Arbitration & Mediation, The George Washington University Law School, Fall 2013
• Presenter, “Preparing for a Hearing,” D.C. Government Labor-Management Relations Conference, September 30, 2013
Mr. Greenberg may be reached at:
Email: kdgreenberg@laborarbitration.com
Telephone: (301) 500-2149
Facsimile: (240) 254-3535
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Mr. Greenberg works exclusively as a neutral, offering arbitration, mediation, and other neutral dispute resolution services. Mr. Greenberg does not practice law. Nothing contained herein is intended to offer legal advice, and no attorney-client relationship is formed through any exchange of correspondence related to this website or otherwise. No customer or client information is collected or shared with third parties/affiliates for marketing/promotional purposes.
Mr. Greenberg is an active member in good standing of the bars of New York and New Jersey, and is an inactive member of the District of Columbia Bar.
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