Welcome to the Clandestine Laboratory Investigators Association’s (CLIA) website. The Clandestine Laboratory Investigators Association, often referred to as CLIA™, is a nonprofit organization dedicated to provide training, technical support, legislation assistance and expert testimony to all law enforcement, prosecutors and emergency service personnel.All training provided by CLIA is in compliance with Federal Occupational Safety and Health Administration (OSHA) and California Occupational Safety and Health Administration (Cal OSHA) regulations. Instructors are experts in their fields. You will receive the most professional and up-to-date classes that are being marketed. CLIA also has a yearly, one week training conference. This conference gives updated information on investigations, safety, recertification, new trends, legislation, site safety officer training and information needed by patrol officers, investigators, fire services, criminalists and prosecutors.