| ABP | Planning Board (An Bord Pleanála), Ireland |
| AER | Annual Environmental Report |
| ARC | Audit and Risk Committee |
| ARERA | Regulatory Authority for Energy, Networks and Environment (Autorità di Regolazione per Energia Reti e Ambiente), Italy |
| ASN | Nuclear Safety Authority (Autorité de sûreté nucléaire), France |
| BATs | Best Available Techniques |
| BI | Behavioural insights |
| C&AG | Comptroller and Auditor General |
| CAFE | Clean Air for Europe |
| CCAC | Climate Change Advisory Council |
| CEO | Chief executive officer |
| CI | Compliance investigation |
| CNH | National Hydrocarbons Commission (Comisión Nacional de Hidrocarburos), Mexico |
| CO2 | Carbon dioxide |
| COP | Conference of the Parties |
| CRU | Commission for Regulation of Utilities |
| CSO | Central Statistics Office |
| CTA | Canadian Transportation Agency |
| DAFM | Department of Agriculture, Food and the Marine |
| DBEI | Department of Business, Enterprise and Innovation |
| DCCAE | Department of Communications, Climate Action and Environment |
| DHPLG | Department for Housing, Planning and Local Government |
| DPER | Department for Public Expenditure and Reform |
| DPP | Director of Public Prosecutions |
| EEA | European Environment Agency |
| EC | Executive Committee |
| EDEN | Environmental Data Exchange Network |
| EIA | Environmental Impact Assessment |
| EIAR | Environmental Impact Assessment Report |
| ELV | End of Life Vehicles |
| EPA | Environmental Protection Agency |
| ERC | Executive Risk Committee |
| ERSAR | Portugal’s Water and Waste Services Regulatory Authority |
| ETS | Emissions Trading Scheme |
| EU | European Union |
| EUR | Euros |
| Euratom | European Atomic Energy Community |
| FPN | Fixed Payment Notice |
| FSAI | Food Safety Authority of Ireland |
| GMOs | Genetically modified organisms |
| HFCs | Hydrofluorocarbons |
| HHI | Herfindahl Hirschman Index |
| HIQA | Health Information and Quality Authority |
| HR | Human resources |
| HRD | Human Resources Development |
| HSA | Health and Safety Authority |
| HSE | Health Services Executive |
| IAEA | International Atomic Energy Agency |
| ICT | Information and Communications Technology |
| IED | Industrial Emissions Directive |
| IEN | Irish Environment Network |
| IFA | Irish Farmers Association |
| IPC | Integrated Pollution Control |
| IPCC | Intergovernmental Panel on Climate Change |
| KPIs | Key performance indicators |
| LAWPRO | Local Authority Waters Programme |
| LEMA | Licensing, Enforcement, Monitoring and Assessment |
| MLN | Management and Leadership Network |
| MoU | Memorandum of Understanding |
| NCMC | National Co-ordination & Management Committee |
| NDC | Nationally determined contribution |
| NER | Network of Economic Regulators |
| NGO | Non-governmental organisation |
| NIECE | Network for Ireland’s Environmental Compliance and Enforcement |
| NIR | Non-ionising radiation |
| NPDWAG | National Pesticides in Drinking Water Action Group |
| NRGI | Natural Resource Governance Institute |
| NTFSO | National Transfrontier Shipment of Waste Office |
| NTIG | National Technical Implementation Group |
| NWCPO | National Waste Collection Permit Office |
| NWPC | National Waste Prevention Committee |
| OCCS | Office of Communications and Corporate Services |
| ODS | Ozone depleting substances |
| OECD | Organisation for Economic Co-operation and Development |
| OEA | Office of Environmental Assessment |
| OEE | Office of Environmental Enforcement |
| OES | Office of Environmental Sustainability |
| ORM | Office of Radiation Protection and Environmental Monitoring |
| PAC | Public Accounts Committee |
| PAFER | Performance assessment framework for economic regulators |
| PCQA | Water quality testing programmes |
| PDA | Performance Delivery Agreement |
| PDO | Protected Disclosures Officer |
| PMDS | Performance Management and Development System |
| POPs | Persistent Organics Pollutions |
| RAL | Remedial Action List |
| RBMP | River Basin Management Plan |
| RPII | Radiological Protection Institute of Ireland |
| SEAs | Strategic environmental assessments |
| SMN | Senior Management Network |
| UNFCCC | United Nations Framework Convention on Climate Change |
| VOCs | Volatile organic compounds |
| WEEE | Waste Electrical and Electronic Equipment |
| WERLAs | Waste Enforcement Regional Lead Authorities |
| WFD | Water Framework Directive |
| WPAC | Water Policy Advisory Committee |
| WWDL | Waste Water Discharge License |
Driving Performance at Ireland’s Environmental Protection Agency