Professional Activities:
- Texas State Joint Apprenticeship Committee
- Chairman, State Board of Directors 1976
State Board of Directors 1972-1982
Texas Environmental Balancing Bureau (NEBB)
- State President 1991
Board of Directors 1988-1993
Southern State Pipe Trades Apprenticeship (18 States Regional Board)
- Board of Directors 1981-1991
San Antonio Air Conditioning Contractors Association (SACCA)
- President 1982 and 1983 (Elected Twice)
Board of Directors 1981, 1984, and 1987
American Society of Heating & Air Conditioning Engineers, San Antonio Chapter (ASHRAE)
- President 1973
Board of Directors 1969-1973, Treasurer 1970, Secretary 1971, Vice-President 1972
San Antonio Sheet Metal Contractors Association (SMACNA)
- President 1989
Vice-President 1983-1990
San Antonio Builders Exchange
- 2nd Vice-President 1992-1993
Board of Directors 1991
San Antonio Construction Industry Council
- Board of Directors 1987-1991
Executive Board of Directors 1991
San Antonio Subcontractors Association (ASA)
- Board of Directors 1989-1994
Plumbing, Heating & Cooling Contractors Association (PHCC)
- Board of Directors 1984-1986
Associated General Contractors (AGC) 1998-1999