LEONHARDT COMPANY, INC

EST. 1946

Industry Links
Government Organizations 

CDC Centers for Disease Control and Prevention 
DOE U.S. Department of Energy
EPA U.S. Environmental Protection Agency
NIH National Institutes of Health
NIOSH National Institute for Occupational Safety and Health
NSF National Science Foundation
OSHA Occupational Safety and Health Administration
SMACNA Sheet Metal and Air Conditioning Contractors' National Association
USGBC: LEED US Green Building Council: Leadership in Energy and Environmental Design

Health and Safety

ACGIH American Conference of Governmental Industrial Hygienists
AIHA American Industrial Hygiene Association
CDC Centers for Disease Control and Prevention

Professional Associations

ACCA Air Conditioning Contractors of America
AESP Association of Energy Service Professionals
ASHRAE American Society of Refrigerating and Air-Conditioning Engineers
ASME American Society of Mechanical Engineers
NSPE National Society of Professional Engineers

Standards

ANSI American National Standards Institute
ICBO International Conference of Building Officials
ISO International Organization for Standardization
NEC National Electric Code
NFPA National Fire Protection Association
NIST National Institute of Standards & Technology