Licenses and Certifications NHDES administers a number of certifications and licenses for professionals who work in industries that impact public health and the environment. For many programs, NHDES also conducts training courses and workshops. Asbestos Management and Disposal Green SnowPro Operator Certification Hazardous Waste Coordinator Certification Environmental Laboratory Accreditation Program Septic System Designers and Installers Small Quantity Generator Self-Certification Solid Waste Operator Training Underground Storage Tank Operator Training Wastewater Operator Certification Water Well Construction and Pump Installation Water Works Operator Certification