| FFFCMPA | FFFCU | FFFD | FFFDC | FFF&E |
| FFFE | FFFF | FFFFC | FFFG | FFFH |
| FFFI | FFFIPP | FFFIS | FFFJ | FFFL |
| FFFM | FFFN | FFFO | FFFOD | FFFOS |
| FFFP | FFFR | FF/FR | FFFRC | Environmental Education Project |
| Environmental Education Research | Environmental Education Research Unit | Environmental Education Resource Guide | Environmental Education, Science and Technology | Environmental Education Specialist |
| Environmental Education Television Project for China | Environmental Education through Participatory Action and Learning | Environmental Educators of British Columbia | Environmental Educators of North Carolina | Environmental Educators Provincial Specialist Association |
| Environmental Effect Analysis | Environmental Effects for Distributed Interactive Simulations | Environmental Effects of Dredging Program | Environmental Effects Statement | Environmental Effects Subcommittee |
| Environmental Effects, Transport and Fate Committee | Environmental Emergencies Partnership | Environmental Emergencies Section | Environmental Emergencies Technology Division | Environmental Emergency Response Plans |
| Environmental Emergency Response Unit | Environmental Endocrine Disruptors | Environmental Energy Alliance of New York | Environmental Energy and Awareness Division | Environmental Energy and Finance Corporation |
| Environmental & Energy Awareness Week | Environmental Energy, Inc. | Environmental & Energy Law & Policy Journal | Environmental Energy Services | Environmental Energy Technologies Division |
| Environmental Engineering | Environmental engineering | Environmental Engineering Analytical Chemistry Laboratory | Environmental Engineering And Geotechnology Function | Environmental Engineering and Management Journal |
| Environmental Engineering and Pollution Control Organization | Environmental Engineering and Sustainable Infrastructure | Environmental Engineering and Technology | Environmental Engineering and Water Resources | Environmental Engineering Division |
| Environmental Engineering Information System | Environmental Engineering & Management Associates, Inc | Environmental Engineering Research Centre | Environmental Engineering, Science and Management | Environmental & Engineering Services Inc. |
| Environmental Engineering Society | Environmental Engineering Student Society | Environmental Engineers Association of Thailand | Environmental Engineers & Managers Institute | Environmental Enhancement and Mitigation |
| Environmental Enhancement and Mitigation Program | Environmental Enhancement Mitigation Demonstration Program | Environmental Enrichment Device | Environmental Enterprise Developmental Initiative | Environmental Enterprises Assistance Fund |
| Environmental Enterprises Incorporated | Environmental Entrepreneurs Climate Campaign | Environmental Equipment Evaluation Team for Aviation Support | Environmental Estrogens and Other Hormones | Environmental ethics |
| Environmental Ethics Certificate Program | Environmental Evaluation and Assessment | Environmental Evaluation Coordinator | Environmental Evaluation Group | Environmental Evaluation Unit |
| Environmental Excellence Business Network | environmental executive agent | Environmental Exploratory Grant Program | Environmental Export Council | Environmental Exposure and Health |
| Environmental Exposure Unit | Environmental factor | Environmental Farm Planning | Environmental Fate and Effects Division | Environmental Fate Data Base |
| Environmental Feasibility Study | Environmental Federation of North Carolina | Environmental Field Report | Environmental Field Services Group | Environmental Film Festival |
| Environmental Film Festival Network | Environmental Finance Center Network | Environmental Financial Advisory Board | Environmental Financial Consulting Group | Environmental Financing Information Network |
| Environmental Flow Requirement | Environmental Flows Decision Support System | Environmental Fluid Dynamics Code | Environmental Fluid Dynamics Laboratory | Environmental Fluid Dynamics Program |
| Environmental fluid mechanics | Environmental Fluid Mechanics and Hydrology | Environmental Fluid Mechanics Laboratory | Environmental Footprint Comparison Tool | Environmental Forum for Action |
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