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 CEMENT PROMOTION COUNCIL

8) CALIFORNIA FILM EXTRUDERS & CONVERTERS ASSOCIATION

9) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

10) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

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

12) CALIFORNIA PARK & RECREATION SOCIETY

13) CALIFORNIA PRECAST CONCRETE ASSOCIATION

14) CALIFORNIA TRAILS FOUNDATION

15) CALPORTLAND COMPANY

16) CEMEX INC.

17) CJ BIOMATERIALS, INC.

18) EVEZ CHARGING FOUNDATIONS

19) HANSON PERMANENTE CEMENT, INC.

20) HEIDELBERG MATERIALS

21) KB CENTER LLC

22) LOS ANGELES, COUNTY OF

23) MITSUBISHI CEMENT COMPANY (MCC)

24) NATIONAL CEMENT COMPANY OF CALIFORNIA

25) NATUREWORKS LLC

26) NORTH LAKE TAHOE RESORT ASSOCIATION

27) NORTH TAHOE FIRE PROTECTION DISTRICT

28) NORTH TAHOE PUBLIC UTILITY DISTRICT

29) NOVAMONT NORTH AMERICA, INC.

30) PACIFIC STEEL GROUP (PSG)

31) PCI WEST

32) POTENTIAL INDUSTRIES, INC.

33) PRE-CON PRODUCTS

34) PROTECT AMERICAN RIVER CANYONS (PARC)

35) RECYCLING PARTNERSHIP, THE

36) RIO TINTO SERVICES, INC.

37) SAVE MOUNT DIABLO

38) SIERRA BUSINESS COUNCIL

39) SIERRA CONSORTIUM

40) SONOMA COUNTY REGIONAL PARKS

41) SOUTH TAHOE PUBLIC UTILITY DISTRICT

42) TAHOE CITY PUBLIC UTILITY DISTRICT

43) U.S. BORAX INC.

44) UNACEM NORTH AMERICA

45) VLS ENVIRONMENTAL SOLUTIONS