| Certified Stormwater Manager | American Public Works Association |
| WSO - Certified Governmental Environmental Officer | World Safety Organization |
| Certified Environmental Auditor | National Registry of Environmental Professionals |
| Registered Environmental Property Assessor | National Registry of Environmental Professionals |
| Managing Recycling Systems | Solid Waste Association of North America |
| Managing MSW Collection Systems | Solid Waste Association of North America |
| Corrosion and Materials Professional | American Petroleum Institute |
| Certified Environmental Scientist | National Registry of Environmental Professionals |
| Rating Field Inspector | Residential Energy Services Network |
| LEED AP Homes | Green Business Certification Inc. |
| Certified Professional in Erosion and Sediment Control | EnviroCert International, Inc. |
| Certified Energy Auditor | Association of Energy Engineers |
| Certified Erosion, Sediment and Storm Water Inspector | EnviroCert International, Inc. |
| Certified Hazardous Materials Manager | Institute of Hazardous Materials Management |
| WSO - Certified Governmental Safety Officer | World Safety Organization |
| Certified Environmental Storm Water Compliance Professional | National Registry of Environmental Professionals |
| LEED AP Building Design + Construction | Green Business Certification Inc. |
| LEED AP Interior Design + Construction | Green Business Certification Inc. |
| LEED AP Operations + Maintenance | Green Business Certification Inc. |
| Certified Home Energy Rater | Residential Energy Services Network |
| WSO - Certified Governmental Environmental Specialist | World Safety Organization |
| Managing Integrated Solid Waste Management Systems | Solid Waste Association of North America |
| Managing Composting Programs | Solid Waste Association of North America |
