Certification or Licensing
Water/wastewater engineers who provide services to the public are required to be licensed. Employers may also require engineers to be licensed. There are different licenses for different levels of engineering experience. There is the engineer intern (EI) license, the engineer in training (EIT) license, and the professional engineer (PE) license. Each state issues its own licenses and requirements vary by state. Some states require engineers take continuing education courses to maintain their license. In general, to receive the PE license, engineers must have graduated from an ABET-accredited engineering program, pass the Fundamentals of Engineering exam and the Professional Engineering exam, and have four years of relevant work experience. PEs are able to supervise other engineers and sign off on projects. After licensing, environmental engineers may receive board certification in areas of specialization from the American Academy of Environmental Engineers and Scientists.
- Agricultural Scientists
- Air Quality Engineers
- Aquarists
- Arborists
- Biochemists
- Bioenergy/Biofuels Workers
- Biofuels Processing Technicians
- Biofuels Production Managers
- Biofuels/Biodiesel Technology and Product Development Managers
- Biologists
- Biomass Plant Technicians
- Biomass Power Plant Managers
- Boilermakers and Mechanics
- Botanists
- Brownfield Redevelopment Specialists and Site Managers
- Business Managers
- Chemical Engineers
- Chemists
- Chief Sustainability Officers
- Civil Engineers
- Climate Scientists
- Corporate Climate Strategists
- Ecologists
- Electricians
- Energy Conservation Technicians
- Energy Consultants
- Energy Transmission and Distribution Workers
- Engineering Technicians
- Engineers
- Environmental Consultants
- Environmental Economists
- Environmental Education Program Directors
- Environmental Engineers
- Environmental Lawyers
- Environmental Lobbyists
- Environmental Planners
- Environmental Restoration Planners
- Environmental Scientists
- Environmental Technicians
- EPA Special Agents
- Fish and Game Wardens
- Forensic Meteorologists
- Foresters
- Forestry Technicians
- Geological Technicians
- Geologists
- Geophysicists
- Geotechnical Engineers
- Geothermal Energy Industry Workers
- Geothermal Production Managers
- Geothermal Technicians
- Green Builders
- Green Hotel/Resort Ecomanagers
- Green Products Manufacturers
- Green Transportation Careers
- Groundwater Professionals
- Hazardous Waste Management Specialists
- Hazardous Waste Management Technicians
- Horticultural Inspectors
- Horticultural Technicians
- Hydroelectric Plant Technicians
- Hydroelectric Production Managers
- Hydropower and Marine Energy Industry Workers
- Indoor Environmental Health Specialists
- Industrial Ecologists
- Land Acquisition Professionals
- Land Trust or Preserve Managers
- Landscape Architects
- Line Installers and Cable Splicers
- Marine Biologists
- Meter Readers, Utilities
- Methane/Landfill Gas Collection System Operators
- Methane/Landfill Gas Generation System Technicians
- Microbiologists
- Molecular and Cellular Biologists
- National Park Service Employees
- Naturalists
- Non-Destructive Testing Specialists
- Oceanographers
- Park Rangers
- Plumbers and Pipefitters
- Power Plant Workers
- Range Managers
- Recycling and Reclamation Workers
- Recycling Coordinators
- Refuse Collectors
- Renewable Energy Careers
- Renewable Energy Engineers
- Rewilders
- Soil Conservationists and Technicians
- Soil Scientists
- Telephone and PBX Installers and Repairers
- Traffic Engineers
- Wastewater Treatment Plant Operators and Technicians
- Wind Energy Engineers
- Wind Energy Operations Managers
- Wind Energy Project Managers
- Zoo and Aquarium Curators and Directors
- Zoologists