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