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New York Academy of Sciences (member since 1992) National Society of Professional Engineers and the New York State Society for Professional Engineers ;(member since 1981); Past President New York ( Manhattan) Chapter, 1994-95; Past Regional Vice President, New York City Region, 1998-2002 and 2008-2010 General Society of Mechanics and Tradesmen of the City of New York (member since 1991); Past President, 1998-99
New York Academy of Sciences (member since 1992)
National Society of Professional Engineers and the New York State Society for Professional Engineers ;(member since 1981); Past President New York ( Manhattan) Chapter, 1994-95; Past Regional Vice President, New York City Region, 1998-2002 and 2008-2010
General Society of Mechanics and Tradesmen of the City of New York (member since 1991); Past President, 1998-99
American Society of Heating, Refrigeration, and Air Conditioning Engineers(member since 1990) Association of Energy Engineers (member since 1993) American Society of Plumbing Engineers (member since 1993) Institute of Electrical and Electronics Engineers (member since 1976) Illuminating Engineering Society (member since 1982) Instrument Society of America (member since 1988) Construction Specifications Institute (member since 1989) National Fire Protection Association (member since 1989)
American Society of Heating, Refrigeration, and Air Conditioning Engineers(member since 1990)
Association of Energy Engineers (member since 1993)
American Society of Plumbing Engineers (member since 1993)
Institute of Electrical and Electronics Engineers (member since 1976)
Illuminating Engineering Society (member since 1982)
Instrument Society of America (member since 1988)
Construction Specifications Institute (member since 1989)
National Fire Protection Association (member since 1989)
