1) AIR TRAFFIC CONTROL ASSOCIATION

2) AMERICAN ASSOCIATION OF AIRPORT EXECUTIVES

3) AMERICAN CEMENT ASSOCIATION (FORMERLY PORTLAND CEMENT ASSOCIATION)

4) AMERICAN TRUCKING ASSOCIATIONS

5) ASSOCIATION OF EQUIPMENT MANUFACTURERS

6) BENTLEY SYSTEMS

7) CHARLESTON COUNTY AVIATION AUTHORITY

8) CITY OF CALUMET CITY

9) CITY OF LUBBOCK, TEXAS ON BEHALF OF LUBBOCK PRESTON SMITH INTERNATIONAL AIRPORT

10) CONCRETE MASONRY AND HARDSCAPES ASSOCIATION (FORMERLY NAT'L CONCRETEMASONRYASSN)

11) ENVIRI CORPORATION (FORMERLY HARSCO CORPORATION)

12) FLUOR CORPORATION

13) FORD MOTOR COMPANY

14) GENERAL AVIATION MANUFACTURERS ASSOCIATION

15) LANCASTER AIRPORT AUTHORITY

16) METROPOLITAN TRANSPORTATION COMMISSION

17) QUALCOMM INCORPORATED

18) RTX CORPORATION

19) SOUTHWEST AIRLINES

20) SPIRE ENERGY