Regulatory Programs Branch Chief for the State Public Health Laboratory of the Colorado Department of Public Health and Environment. The branch has five programs, including the Cannabis Sciences Program, which is comprised of three sections: the Cannabis Laboratory Certification Section that performs audits of retail/medical marijuana testing facilities and hemp testing labs for compliance and suitability for certification under state regulations; the state Cannabis Reference Laboratory which develops methods and tests cannabis products for compliance and public health investigations; and the Marijuana Health Monitoring and Research Section which monitors marijuana use patterns and health impacts across the state.