1) AECom

2) Allscripts Healthcare Solutions, Inc

3) American Airlines, Inc.

4) American Association of Consumer Credit Professionals

5) American Concrete Pavement Association

6) American Concrete Pipe Association

7) Association of American Railroads

8) Chesapeake Energy

9) Commercial Finance Coalition

10) Consumer Electronics Association (CEA)

11) Delaware Valley Regional Center

12) Direct Primary Care Coalition

13) Dredging Contractors of America

14) Exelon

15) Lawyers for Civil Justice

16) Oklahoma Department of Transportation

17) Partnership To Fight Chronic Disease

18) Portland Cement Association

19) Santa Rosa County, FL

20) SEPTA

21) Stella Jones Corporation (formerly known as McFarland Cascade Holdings, Inc.)

22) Wakpamni Lake Community Corporation - Arrowhead Advance

23) Williams Companies

1) American Concrete Pipe Association

2) Blue Sky

3) Borror Public Affairs

4) Brooks Construction Co., Inc.

5) Cardinal Strategies LLC

6) City of Carmel

7) Comcast

8) Fort Wayne-Allen County Airport Authority

9) Greater Fort Wayne Metro Chamber Alliance, Inc.

10) Ivy Tech Community College

11) RTM Ventures

12) Wal-Mart Stores, Inc

1) AECom

2) American Airlines, Inc.

3) American Concrete Pavement Association

4) American Concrete Pipe Association

5) Association of American Railroads

6) Chesapeake Energy

7) Consumer Electronics Association (CEA)

8) Dredging Contractors of America

9) Exelon

10) Oklahoma Department of Transportation

11) Portland Cement Association

12) Santa Rosa County, FL

13) Stella Jones Corporation (formerly known as McFarland Cascade Holdings, Inc.)

14) Williams Companies

1) AGGREPLEX

2) ALESSANDRA FOUNDATION; THE

3) AMERICAN CONCRETE PIPE ASSOCIATION (ACPA)

4) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS; THE

5) ASSOCIATION OF PLASTIC RECYCLERS (APR); THE

6) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

7) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

8) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

9) CALIFORNIA NEVADA CEMENT ASSOCIATION (CNCA)

10) CALIFORNIA OUTDOOR RECREATION PARTNERSHIP, INC. (CORP)

11) CALIFORNIA PARK & RECREATION SOCIETY (CPRS)

12) CALIFORNIA PRECAST CONCRETE ASSOCIATION

13) CALIFORNIA TRAILS FOUNDATION

14) CALPORTLAND COMPANY

15) CEMEX INC.

16) EAST BAY REGIONAL PARK DISTRICT

17) LEHIGH SOUTHWEST CEMENT COMPANY

18) LOS ANGELES; COUNTY OF

19) MITSUBISHI CEMENT CORPORATION

20) NATIONAL CEMENT COMPANY OF CALIFORNIA

21) NATUREWORKS LLC

22) NORTH LAKE TAHOE RESORT ASSOCIATION, INC. DBA NORTH TAHOE COMMUNITY ALLIANCE

23) NORTH TAHOE FIRE PROTECTION DISTRICT

24) NORTH TAHOE PUBLIC UTILITY DISTRICT

25) NOVAMONT NORTH AMERICA, INC.

26) PACIFIC STEEL GROUP (PSG)

27) PACTIV EVERGREEN INC.

28) PCI WEST

29) PETRA (PET RESIN ASSOCIATION)

30) POTENTIAL INDUSTRIES, INC.

31) RECYCLING PARTNERSHIP; THE

32) RIO TINTO SERVICES, INC.

33) SAVE MOUNT DIABLO

34) SIERRA BUSINESS COUNCIL

35) SIERRA CONSORTIUM

36) SONOMA COUNTY REGIONAL PARKS

37) SOUTH TAHOE PUBLIC UTILITY DISTRICT

38) TAHOE CITY PUBLIC UTILITY DISTRICT

39) U.S. BORAX INC.

40) UNACEM NORTH AMERICA (DRAKE CEMENT & TEHACHAPI CEMENT)

41) WESTERN PLASTICS ASSOCIATION

1) American Concrete Pipe Association

2) American Society of Home Inspectors

3) American Staffing Association

4) ASCA

5) Colorado Auto Recyclers

6) Colorado Wyoming Petroleum Marketers

7) Farwest Equipment Dealers Association

8) General Cigar Co., Inc.

9) GreenCO

10) Hicks & Associates

11) Independent Electrical Contractors Rocky Mountain

12) Pilot Travel Centers

13) PMI Global Services Inc. and Affiliates

14) Smoker Friendly International

1) AGGREPLEX

2) ALESSANDRA FOUNDATION; THE

3) AMERICAN CONCRETE PIPE ASSOCIATION (ACPA)

4) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS; THE

5) ASSOCIATION OF PLASTIC RECYCLERS (APR); THE

6) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

7) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

8) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

9) CALIFORNIA NEVADA CEMENT ASSOCIATION (CNCA)

10) CALIFORNIA OUTDOOR RECREATION PARTNERSHIP, INC. (CORP)

11) CALIFORNIA PARK & RECREATION SOCIETY (CPRS)

12) CALIFORNIA PRECAST CONCRETE ASSOCIATION

13) CALIFORNIA TRAILS FOUNDATION

14) CALPORTLAND COMPANY

15) CEMEX INC.

16) EAST BAY REGIONAL PARK DISTRICT

17) LEHIGH SOUTHWEST CEMENT COMPANY

18) LOS ANGELES; COUNTY OF

19) MITSUBISHI CEMENT CORPORATION

20) NATIONAL CEMENT COMPANY OF CALIFORNIA

21) NATUREWORKS LLC

22) NORTH LAKE TAHOE RESORT ASSOCIATION, INC. DBA NORTH TAHOE COMMUNITY ALLIANCE

23) NORTH TAHOE FIRE PROTECTION DISTRICT

24) NORTH TAHOE PUBLIC UTILITY DISTRICT

25) NOVAMONT NORTH AMERICA, INC.

26) PACIFIC STEEL GROUP (PSG)

27) PACTIV EVERGREEN INC.

28) PCI WEST

29) PETRA (PET RESIN ASSOCIATION)

30) POTENTIAL INDUSTRIES, INC.

31) RECYCLING PARTNERSHIP; THE

32) RIO TINTO SERVICES, INC.

33) SAVE MOUNT DIABLO

34) SIERRA BUSINESS COUNCIL

35) SIERRA CONSORTIUM

36) SONOMA COUNTY REGIONAL PARKS

37) SOUTH TAHOE PUBLIC UTILITY DISTRICT

38) TAHOE CITY PUBLIC UTILITY DISTRICT

39) U.S. BORAX INC.

40) UNACEM NORTH AMERICA (DRAKE CEMENT & TEHACHAPI CEMENT)

41) WESTERN PLASTICS ASSOCIATION

1) AGGREPLEX

2) ALESSANDRA FOUNDATION; THE

3) AMERICAN CONCRETE PIPE ASSOCIATION (ACPA)

4) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS; THE

5) ASSOCIATION OF PLASTIC RECYCLERS (APR); THE

6) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

7) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

8) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

9) CALIFORNIA NEVADA CEMENT ASSOCIATION (CNCA)

10) CALIFORNIA OUTDOOR RECREATION PARTNERSHIP, INC. (CORP)

11) CALIFORNIA PARK & RECREATION SOCIETY (CPRS)

12) CALIFORNIA PRECAST CONCRETE ASSOCIATION

13) CALIFORNIA TRAILS FOUNDATION

14) CALPORTLAND COMPANY

15) CEMEX INC.

16) EAST BAY REGIONAL PARK DISTRICT

17) LEHIGH SOUTHWEST CEMENT COMPANY

18) LOS ANGELES; COUNTY OF

19) MITSUBISHI CEMENT CORPORATION

20) NATIONAL CEMENT COMPANY OF CALIFORNIA

21) NATUREWORKS LLC

22) NORTH LAKE TAHOE RESORT ASSOCIATION, INC. DBA NORTH TAHOE COMMUNITY ALLIANCE

23) NORTH TAHOE FIRE PROTECTION DISTRICT

24) NORTH TAHOE PUBLIC UTILITY DISTRICT

25) NOVAMONT NORTH AMERICA, INC.

26) PACIFIC STEEL GROUP (PSG)

27) PACTIV EVERGREEN INC.

28) PCI WEST

29) PETRA (PET RESIN ASSOCIATION)

30) POTENTIAL INDUSTRIES, INC.

31) RECYCLING PARTNERSHIP; THE

32) RIO TINTO SERVICES, INC.

33) SAVE MOUNT DIABLO

34) SIERRA BUSINESS COUNCIL

35) SIERRA CONSORTIUM

36) SONOMA COUNTY REGIONAL PARKS

37) SOUTH TAHOE PUBLIC UTILITY DISTRICT

38) TAHOE CITY PUBLIC UTILITY DISTRICT

39) U.S. BORAX INC.

40) UNACEM NORTH AMERICA (DRAKE CEMENT & TEHACHAPI CEMENT)

41) WESTERN PLASTICS ASSOCIATION

1) American Concrete Pipe Association

2) AUTODESK, INC

3) Forterra

4) Metropolitan Transportation Commission

5) Norfolk Southern

6) Owner-Operators Independent Drivers Association

7) Professional Engineers in California Government

8) Rails to Trails Conservancy

9) SB Capitol Solutions on behalf of U.S. Travel Association

10) Texas Central Partners

11) The Association of Union Constructors

12) The Doerrer Group on behalf of Uber Technologies, Inc.

13) Tri-County Metropolitan Transportation District of Oregon (TriMet)

14) Washington State Department of Transportation

1) AIA Ohio

2) American Concrete Pipe Association

3) National Electrical Contractors Association, Ohio/Michigan Chapter

4) Ohio Chapter, American Society of Landscape Architects

1) AECOM

2) AMERICAN AIRLINES, INC.

3) AMERICAN CONCRETE PAVEMENT ASSOCIATION

4) AMERICAN CONCRETE PIPE ASSOCIATION

5) ASSOCIATION OF AMERICAN RAILROADS

6) CHESAPEAKE ENERGY

7) CONSUMER ELECTRONICS ASSOCIATION (CEA)

8) DELAWARE VALLEY REGIONAL CENTER

9) DREDGING CONTRACTORS OF AMERICA

10) EXELON

11) OKLAHOMA DEPARTMENT OF TRANSPORTATION

12) SEPTA

13) WILLIAMS COMPANIES

1) AGGREPLEX

2) ALESSANDRA FOUNDATION; THE

3) AMERICAN CONCRETE PIPE ASSOCIATION (ACPA)

4) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS; THE

5) ASSOCIATION OF PLASTIC RECYCLERS (APR); THE

6) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

7) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

8) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

9) CALIFORNIA NEVADA CEMENT ASSOCIATION (CNCA)

10) CALIFORNIA OUTDOOR RECREATION PARTNERSHIP, INC. (CORP)

11) CALIFORNIA PARK & RECREATION SOCIETY (CPRS)

12) CALIFORNIA PRECAST CONCRETE ASSOCIATION

13) CALIFORNIA TRAILS FOUNDATION

14) CALPORTLAND COMPANY

15) CEMEX INC.

16) EAST BAY REGIONAL PARK DISTRICT

17) LEHIGH SOUTHWEST CEMENT COMPANY

18) LOS ANGELES; COUNTY OF

19) MITSUBISHI CEMENT CORPORATION

20) NATIONAL CEMENT COMPANY OF CALIFORNIA

21) NATUREWORKS LLC

22) NORTH LAKE TAHOE RESORT ASSOCIATION, INC. DBA NORTH TAHOE COMMUNITY ALLIANCE

23) NORTH TAHOE FIRE PROTECTION DISTRICT

24) NORTH TAHOE PUBLIC UTILITY DISTRICT

25) NOVAMONT NORTH AMERICA, INC.

26) PACIFIC STEEL GROUP (PSG)

27) PACTIV EVERGREEN INC.

28) PCI WEST

29) PETRA (PET RESIN ASSOCIATION)

30) POTENTIAL INDUSTRIES, INC.

31) RECYCLING PARTNERSHIP; THE

32) RIO TINTO SERVICES, INC.

33) SAVE MOUNT DIABLO

34) SIERRA BUSINESS COUNCIL

35) SIERRA CONSORTIUM

36) SONOMA COUNTY REGIONAL PARKS

37) SOUTH TAHOE PUBLIC UTILITY DISTRICT

38) TAHOE CITY PUBLIC UTILITY DISTRICT

39) U.S. BORAX INC.

40) UNACEM NORTH AMERICA (DRAKE CEMENT & TEHACHAPI CEMENT)

41) WESTERN PLASTICS ASSOCIATION

1) American Concrete Pipe Association

2) Ascend Performance Materials LLC

3) AUTODESK, INC

4) City of Lynnwood, WA

5) CITY OF TUKWILA (WA)

6) CLACKAMAS COUNTY, OR

7) Confederated Tribes of Grand Ronde

8) Forterra

9) Friends of Frog Ferry

10) Lone Elk Partners

11) Metro

12) Metropolitan Transportation Commission

13) National Forest Homeowners

14) Norfolk Southern

15) Oregon Independent Medical Clinics

16) Oregon Shipping Group

17) Owner-Operators Independent Drivers Association

18) Port of Hood River, Oregon

19) Port of Pasco

20) PORT OF WALLA WALLA

21) Professional Engineers in California Government

22) Rail Security Alliance

23) Rails to Trails Conservancy

24) SB Capitol Solutions on behalf of U.S. Travel Association

25) Texas Central Partners

26) The Association of Union Constructors

27) The Doerrer Group on behalf of Uber Technologies, Inc.

28) THE GREENBRIER COMPANIES

29) Tri-County Metropolitan Transportation District of Oregon (TriMet)

30) Washington State Department of Transportation

31) Yamhill County, Oregon