1) AGGREPLEX AND ITS AFFILIATED ENTITIES

2) AMERICAN CONCRETE PIPE ASSOCIATION OF CALIFORNIA (ACPA-CA)

3) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS

4) ASSOCIATION OF POSTCONSUMER PLASTIC RECYCLERS (APR)

5) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

6) CALAVERAS CEMENT COMPANY

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

12) CALIFORNIA PRECAST CONCRETE ASSOCIATION

13) CALIFORNIA TRAILS FOUNDATION

14) CALPORTLAND COMPANY

15) CEMEX INC.

16) CJ BIOMATERIALS, INC.

17) EVEZ CHARGING FOUNDATIONS

18) HANSON PERMANENTE CEMENT, INC.

19) HEIDELBERG MATERIALS

20) KB CENTER LLC

21) LOS ANGELES, COUNTY OF

22) MITSUBISHI CEMENT COMPANY (MCC)

23) NATIONAL CEMENT COMPANY OF CALIFORNIA

24) NATUREWORKS LLC

25) NORTH LAKE TAHOE RESORT ASSOCIATION

26) NORTH TAHOE FIRE PROTECTION DISTRICT

27) NORTH TAHOE PUBLIC UTILITY DISTRICT

28) NOVAMONT NORTH AMERICA, INC.

29) PACIFIC STEEL GROUP (PSG)

30) PCI WEST

31) POTENTIAL INDUSTRIES, INC.

32) PRE-CON PRODUCTS

33) PROTECT AMERICAN RIVER CANYONS (PARC)

34) RECYCLING PARTNERSHIP, THE

35) RIO TINTO SERVICES, INC.

36) SAVE MOUNT DIABLO

37) SIERRA BUSINESS COUNCIL

38) SIERRA CONSORTIUM

39) SONOMA COUNTY REGIONAL PARKS

40) SOUTH TAHOE PUBLIC UTILITY DISTRICT

41) TAHOE CITY PUBLIC UTILITY DISTRICT

42) U.S. BORAX INC.

43) UNACEM NORTH AMERICA

44) VLS ENVIRONMENTAL SOLUTIONS

45) WESTERN PLASTICS ASSOCIATION