Cliff Rothenstein has more than 30 years of congressional and federal executive experience. Prior to joining K&L Gates, he served as Director of Legislative Affairs for the Federal Highway Administration (FHWA). In this capacity, Mr. Rothenstein worked on a daily basis with the FHWA Administrator, Deputy Administrator, and Deputy Secretary of the U.S. Department of Transportation (DOT). During Mr. Rothenstein's tenure at FHWA, he led the development and advocacy efforts on legislation to reauthorize the nation's surface transportation law where he played a significant role in developing and recommending to the FHWA Administrator and to other DOT executives proposed changes to the law to streamline project delivery and expand investments in highways, bridges, and multimodal transportation projects. Mr. Rothenstein also coordinated FHWA's discretionary grant programs that fund highway and bridge improvement projects and managed FHWA's relationships with Congress on highway-specific projects and issues. In addition to his tenure at FHWA, Mr. Rothenstein served as a senior advisor on the Senate Environment and Public Works Committee which has jurisdiction over environment and surface transportation issues. He led the Committees efforts on the reauthorization of Superfund, the Resource Conservation and Recovery Act, and the Clean Water and Safe Drinking Water Acts. Mr. Rothenstein also served for 20 years at the Environmental Protection Agency (EPA), including as the Deputy Assistant Administrator and Director of the Office of Underground Storage Tanks. He has represented clients at the intersection of environmental, energy, transportation, and infrastructure policy and regulation, including advising clients on Superfund, the Clean and Safe Drinking Water Acts, the Water Resources Development Act, and the Clean Air and Resource Conservation and Recovery Acts; National Environmental Policy Act strategies for major transportation and energy infrastructure projects; funding opportunities including TIGER grant funding; and issues related to tolling of interstates.
202-661-3865
1601 K St., NW, Washington, DC, 20006, 
Mr. Aliferis is a government affairs advisor in the firm's Washington, D.C., office. He focuses on federal funding issues as well as policy matters involving energy, transportation, the environment and telecommunications.
Prior to joining K&L Gates, Mr. Aliferis served as director of government affairs for the Alliance of Automobile Manufacturers, where he analyzed and monitored energy, environmental, and tax issues affecting the automobile industry. In this capacity, he was directly responsible for developing strategic options, legislative proposals, and media correspondence. Mr. Aliferis drafted congressional testimony for both the House and Senate committees, and served in an advisory role to member companies on relevant legislation. He also acted as a liaison with congressional offices to explain and advance industry positions, and coordinated activities with the House and Senate Auto Caucus.
Mr. Aliferis has an extensive legislative background, serving for nine years under Congressman Fred Upton, former Chairman of the House Energy and Commerce committee. As the legislative director and principal policy advisor in the office, Mr. Aliferis was responsible for the development and oversight of Congressman Upton's legislative agenda in the House of Representatives. He handled telecommunications and media issues under consideration by the House Energy and Commerce committee including the 1992 Cable Act and the 1996 Telecommunications Act. He drafted legislation and amendments on environmental, transportation and budget issues, and coordinated message development with the congressman's chief of staff and district director. Mr. Aliferis also organized outreach efforts to business and community groups.
Mr. Aliferis also served as a congressional intern to Congressman Robert Davis and an assistant to the director of public affairs for the Philadelphia Chamber of Commerce.
202-278-9072
1601 K St., NW, Washington, DC, 20006, 
Links:Website
Stacy J. Ettinger is a partner in the firm's Washington, D.C. office and focuses her practice on public policy. She has over 20 years of experience working in Congress and the executive branch. Her experience spans a variety of fields, including international trade, intellectual property, and regulatory issues, as well as food and product standards, motor vehicle safety, and consumer financial services.
Ms. Ettinger has substantial experience working closely with senior U.S. and foreign government officials and Fortune 500 executives, navigating complex regulatory and compliance regimes and negotiating agreements.
Distinguished Alumni Award, American University, Washington College of Law, 2014
Department of Commerce Bronze Medal (2004), Silver Medal (1997), and General Counsel (1995) awards
Board of Directors, Trade Policy Forum, 2010 to present; Vice President, 2016 to present
Member, Women in International Trade
Member, Washington International Trade Association
Prior to joining K&L Gates, Ms. Ettinger served as a senior legal and policy advisor to Senator Charles Schumer, including as Chief Counsel of the United States Senate Committee on Rules and Administration, and as Deputy Staff Director of the Joint Economic Committee.
Prior to joining the Senator's legislative team, she served as a senior legal advisor at the U.S. Department of Commerce. Ms. Ettinger advised agency officials on the interpretation and application of U.S. and foreign trade rules, supervised dispute settlement proceedings before the World Trade Organization, and represented the United States in international trade negotiations.
2) AMERICAN SECURITY ACTION FUND, INC.
3) American Superconductor Corporation
4) Association of Washington Business
6) Clark Street Associates LLC on behalf of PSIQuantum
8) Commonwealth Fusion Systems LLC
9) Disability Benefits Deadline Initiative
10) Forterra, Inc.
Tim Peckinpaugh's practice focuses on energy, environmental, and natural resource legislative and funding issues.
Mr. Peckinpaugh has represented clients for over thirty years in all aspects of energy policy, including nuclear (fission and fusion), hydroelectric, coal, oil and natural gas, electricity, as well as a variety of clean technology and energy efficiency issues. He also represents major international corporations and local communities on Department of Energy nuclear waste cleanup, nuclear security, and contracting issues. In addition, Mr. Peckinpaugh represents regional chambers of commerce and companies from the Pacific Northwest on appropriations, grant funding, energy, technology, natural resource, trade, agriculture, workforce, and economic development opportunities.
Mr. Peckinpaugh provides assistance on appropriations and legislative drafting, and counsels many of the firm's clients on campaign finance, lobbying, and governmental ethical issues. Finally, he is a previous chair of the firm's public policy group and currently manages the K&L Gates Political Action Committee, one of the largest law firm PACs in the country.
Mr. Peckinpaugh came to the firm in 1985 from Capitol Hill, where he had five year's experience as a professional staff aide to the House Science Committee, former U.S. Congressman Sid Morrison (R–WA), and the Republican Study Committee. While on the Hill, he focused on energy, natural resource, science, technology, and defense issues.
300 Tingey St, Suite 202, Washington DC, DC, 20004, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
2026291555
660 North Capitol Street, N.W., Suite 800, WASHINGTON, DC, 20001, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
660 North Capitol Street, N.W., Suite 800, WASHINGTON, DC, 20001, 
1) AIRPORT MINORITY ADVISORY COUNCIL
3) AMERICAN MARITIME PARTNERSHIP
4) AMERICAN SECURITY ACTION FUND, INC.
5) AMERICAN SMALL MANUFACTURING COALITION
6) Ansys, Inc.
10) Clark Street Associates LLC on behalf of PSIQuantum
660 North Capitol Street, N.W., Suite 800, WASHINGTON, DC, 20001, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
2023313100
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
2) Alen Corp
3) Alibaba Group Holding Limited
6) American College of Rheumatology
7) American Optometric Association
9) Aon (formerly known as Aon Hewitt)
11) Barrick Gold of North America, Inc.
12) Boys & Girls Clubs of America
15) CHSPSC, LLC (FKA Community Health Systems, Inc.)
16) City Winery, LLC
18) CoreCivic (formerly CCA of Tennessee)
19) Covanta Energy Corporation
20) Covestro LLC
25) Global Music Rights, LLC ("GMR")
28) Health Care Alliance for Patient Safety
29) Hotel Association of New York City
31) IAP Worldwide Services, Inc.
32) Intuit Inc.
35) Life Science Logistics, LLC
38) Magellan Health Services (f/k/a Senior Whole Health)
39) March of Dimes
40) MAXIMUS, Inc.
42) Mechanical Contractors Association of America
43) Miami-Dade County, Florida
44) National Independent Talent Organization (NITO)
45) North State Aviation Holdings, LLC
47) Partnership for Quality Home Healthcare
48) Public Health Trust/Jackson Health Systems
52) Ricoh USA, Inc.
55) SESAC Rights Management, Inc.
57) Southern Nevada Home Builders Association
58) Stamps.com
60) Tellurian Inc.
61) Tennessee Public Transportation Association
62) Texas Scottish Rite Hospital for Children
64) The Towers Industries, PBC
65) The Village of Bald Head Island
2026613868
1601 K Street, NW, Washington, DC, 20006, 
2) AGC Flat Glass North America, Inc.
3) AIRPORT MINORITY ADVISORY COUNCIL
6) ALTERNATIVE INVESTMENT MANAGEMENT ASSOCIATION LIMITED
7) AMERICAN BUREAU OF SHIPPING
9) American Commercial Space Innovators
10) American Fuel and Petrochemical Manufacturers
11) AMERICAN MARITIME PARTNERSHIP
12) AMERICAN PYROTECHNICS ASSOCIATION
13) American Roll-on Roll-off Carrier Group, Inc.
14) AMERICAN SECURITY ACTION FUND, INC.
15) AMERICAN SMALL MANUFACTURING COALITION
16) American Superconductor Corporation
17) American Tower Corporation
18) AMERICAN WATER
20) Ansys, Inc.
23) Association of Washington Business
24) Astranis Space Technologies Corp.
30) BLUE ORIGIN, LLC
31) BNSF RAILWAY CO.
32) Boeing Employees' Credit Union
33) Boulder Capital Partners OZB, LLC
35) Brightline Holdings LLC f/k/a Virgin Trains USA LLC
37) BUSINESS LEADERS FOR MICHIGAN
38) ByteDance Inc.
39) California Public Employees' Retirement System
41) Capital SouthEast Connector Joint Powers Authority
42) Catalyst Old River Hydroelectric Limited Partnership
43) CERES, INC.
44) Charles River Laboratories International, Inc.
46) CHSPSC, LLC
47) CHURCH ALLIANCE
50) Clark Street Associates LLC on behalf of PSIQuantum
51) Clark Street Associates on behalf of Bright Machines
52) Clark Street Associates on behalf of Lattice Semiconductor
53) Clark Street Associates on behalf of TruckLabs
54) Clark Street Associates on behalf of Western Digital
55) Clark Street on behalf of Qorvo
56) Cleco Power LLC
57) CMS ENERGY CORP.
58) Coalition for Energy Efficient Jobs & Investment
60) COMMERCIAL SPACEFLIGHT FEDERATION
61) Commonwealth Fusion Systems LLC
62) Community Capital Management, LLC d/b/a CRAFund Advisory, Inc.
64) Conservation International Foundation
65) CONSORTIUM OF STATE MARITIME ACADEMIES
66) Consumer Technology Association
67) Cumberland County Hospital System d/b/a Cape Fear Valley Health System
69) Disability Benefits Deadline Initiative
71) Edelman Financial Engines f/k/a Financial Engines
72) ENVIRONMENTAL DEFENSE ACTION FUND
73) ENVIRONMENTAL DEFENSE FUND
74) Equinix, Inc.
75) Financial Accounting Foundation
76) FinCom Ltd.
77) First Trust Portfolios L.P.
79) Fleet Energy America, Inc.
80) Forterra, Inc.
81) G.W. PEOPLES CONTRACTING CO. INC.
82) GLOBAL ALLIANCE FOR CANNABIS COMMERCE
84) Great Elm Capital Group, Inc.
85) GREAT LAKES METRO CHAMBERS
86) Greater Pittsburgh Chamber of Commerce
87) GREATER SPOKANE INCORPORATED
89) Groundfish Forum
90) Gulf of Mexico Reef Fish Shareholders' Alliance
92) Hyundai Motor Company, Ltd.
94) Index Industry Association
95) Industrial Technology Institute
96) Ingo Money, Inc.
97) Inmarsat PLC d/b/a Inmarsat Aviation
98) INSTITUTE OF INTERNATIONAL CONTAINER LESSORS
99) INSTITUTE OF SCRAP RECYCLING INDUSTRIES, INC.
100) Intelligrated Systems, Inc. dba Honeywell Intelligrated
101) INTERNATIONAL HOUSING COALITION
102) James Hardie Building Products, Inc.
103) John Lefas
104) Just Greens LLC
105) LAKE CARRIERS ASSOCIATION
107) Launch on Demand Corporation
108) LEHIGH HANSON INC.
109) LIBERTY MEDIA CORPORATION
110) LOWER PASSAIC RIVER STUDY AREA COOP
111) Lynas USA, LLC
112) Macquarie Infrastructure and Real Assets, Inc.
113) MADE IN SPACE
114) MAGNOLIA LNG LLC
115) MASSACHUSETTS MARITIME ACADEMY, INC.
116) MATSON NAVIGATION
117) Maxar Technologies Holdings Inc. f/k/a SSL MDA Holdings
118) McDermott International, Inc. f/k/a CHICAGO BRIDGE & IRON (CB&I)
119) Michael L. Taylor
120) Midwater Trawlers Cooperative
121) Moda Health
122) MUSEUM OF FLIGHT
123) NANOBUSINESS COMMERCIALIZATION ASSOCIATION
124) Nanotronics Imaging, Inc.
125) National Assn for Biomedical Research
126) NATIONAL ASSOCIATION OF CHAPTER THIRTEEN TRUSTEES (NACTT)
127) NATIONAL ASSOCIATION OF TRAILER MANUFACTURERS
128) NCL CORPORATION LTD.
129) NextStep Interacative Inc.
130) Nortek Security & Control LLC
131) NORTHERN MICHIGAN UNIVERSITY
132) Olympus Power LLC
133) Oshkosh Corporation
135) PacifiCorp Energy
137) PAPER RECYCLING COALITION
138) Parsyl, Inc.
140) Pinnacle Treatment Centers
141) PITNEY BOWES
143) Poplicus Incorporated d/b/a Govini
144) Port of Moses Lake
145) Port of Portland
146) PPG Industries Inc.
147) PRIMET PRECISION MATERIALS, INC.
148) PRN Software
149) Quantum Industry Coalition
150) Qurate Retail, Inc. f/k/a LIBERTY INTERACTIVE CORPORATION
151) QVC, INC.
152) R.T. G. Furniture Corp. d/b/a Rooms to Go
153) Receivables Management Association fka DBA INTERNATIONAL
154) RenaissanceRe Holdings Ltd.
155) Resolve Marine Group, Inc.
156) Savion, LLC
157) Seastreak LLC
158) Sierra Pacific Industries
159) SIXTEEN THIRTY FUND
160) Spire Global, Inc.
162) SPRAGUE ENERGY CORP.
163) ST. LAWRENCE SEAWAY PILOTS ASSN.
165) STEELCASE, INC.
167) Sunshine Silver Mining & Refining Corporation
168) Suntory Business Expert Limited
169) Texas LNG
170) The ESOP Association
171) The First Church of Christ, Scientist
172) The World Dog Alliance Limited
173) TM3 Systems
175) TOWN OF FUQUAY-VARINA, NC
176) Tradebe Treatment and Recycling, LLC
177) Trans AstroNautica Corporation d/b/a TransAstra
178) Trans-Atlantic Business Council
179) TRANSPHORM INC.
181) TRI-CITY DEVELOPMENT COUNCIL
182) TrueBlue, Inc.
183) Turing Inc.
184) U.S. Global Leadership Campaign
185) United Catcher Boats
186) United States Cannabis Council
187) Vanguard Charitable
188) Velocys Inc
189) Veolia Nuclear Solutions f/k/a Kurion
190) Viamedia, Inc.
191) Vitalant
192) VOX Space
193) WATER INNOVATIONS ALLIANCE
194) WATER INNOVATIONS FOUNDATION
195) WESTERN GREAT LAKES PILOTS ASSN
196) WESTON SOLUTIONS
197) XO Energy, LLC
660 North Capitol Street, N.W., Suite 800, WASHINGTON, DC, 20001, 
2101 L Street, NW, Suite 1000, Washington, DC, 20037, 
5188102468
300 Tingey St, Suite 202, Suite 202, Washington DC, DC, 20004, 
1) AAR Corp.
2) Aiteo Group
3) Alibaba Group Holding Limited
4) AltaMed Health Services Corporation
5) American Public University System
7) Blue Cross Blue Shield of South Carolina
11) Chambers County Improvement District No. 1
13) City of Newark Office of the Mayor Dept of Admin
14) Confederated Salish and Kootenai Tribes of the Flathead Nation "Tribes"
16) Eastern District of Texas Bar Association
17) Emergent BioSolutions, Inc.
18) Fluidigm
22) Hackensack Meridian Health Network
26) International Franchise Association
27) Laboratory Products Association
30) Molecular Testing Laboratories
31) Morris Kearney Associates LLC
32) National Public Finance Guarantee Corporation
33) New Jersey Performing Arts Center Corporation
34) Nolan Thompson & Leighton, PLC
36) Passaic Valley Sewerage Commission
37) Paul Hastings LLP on the behalf of Illumina
38) Placquemines Port Harbor And Terminal District
39) Primerica, Inc.
40) Ready Responders
42) Southeast Louisiana Flood Protection Authority East
43) Sycuan Band of the Kumeyaay Nation
45) Thoma -Sea Marine Constructors, LLC
48) X Labs
49) YCI Methanol One, LLC (f/k/a Yuhuang Chemical Inc.)
50) Zero to Three
2101 L Street, NW, Suite 1000, Washington, DC, 20037,