The NFR codes used on this website are shown below.
| NFR Code | Source Description |
|---|---|
| 1A | Fuel Combustion Activities |
| 1A1 | Energy Industries |
| 1A1a | Public electricity and heat production |
| 1A1b | Petroleum refining |
| 1A1c | Manufacture of solid fuels and other energy industries |
| 1A2 | Manufacturing Industries and Construction |
| 1A2a | Stationary combustion in manufacturing industries and construction: Iron and steel |
| 1A2b | Stationary combustion in manufacturing industries and construction: Non-ferrous metals |
| 1A2c | Stationary combustion in manufacturing industries and construction: Chemicals |
| 1A2d | Stationary combustion in manufacturing industries and construction: Pulp, Paper and Print |
| 1A2e | Stationary combustion in manufacturing industries and construction: Food processing, beverages and tobacco |
| 1A2f | Stationary combustion in manufacturing industries and construction: Non-metallic minerals |
| 1A2gvii | Mobile Combustion in manufacturing industries and construction: Other |
| 1A2gviii | Stationary combustion in manufacturing industries and construction: Other |
| 1A3 | Transport |
| 1A3ai(i) | International Aviation |
| 1A3aii(i) | Domestic aviation |
| 1A3bi | Road Transport: Passenger Cars |
| 1A3bii | Road Transport: Light duty vehicles |
| 1A3biii | Road Transport: Heavy duty vehicles and buses |
| 1A3biv | Road Transport: Mopeds & Motorcycles |
| 1A3bv | Road Transport: Gasoline Evaporations |
| 1A3bvi | Road Transport: Automobile tyre and brake wear |
| 1A3bvii | Road Transport: Automobile road abrasion |
| 1A3c | Railways |
| 1A3dii | National Navigation (shipping) |
| 1A3eii | Other |
| 1A4 | Other Sectors |
| 1A4ai | Commercial/Industrial stationary combustion |
| 1A4aii | Commercial/institutional: Mobile |
| 1A4bi | Residential stationary combustion |
| 1A4bii | Household and gardening mobile combustion |
| 1A4ci | Agriculture/Forestry/Fishing stationary combustion |
| 1A4cii | Off-road vehicles and other machinery from agriculture/forestry/fishing |
| 1A4ciii | Fishing Vessels |
| 1A5 | Other (not elsewhere specified) |
| 1A5b | Other mobile combustion (including military, land based and recreational boats) |
| 1B | Fugitive Emissions from Fuels |
| 1B1 | Fugitive Emissions from Solid Fuels |
| 1B1a | Coal Mining and Handling |
| 1B1b | Solid fuel transformation |
| 1B1c | Other |
| 1B2 | Fugitive Emissions from Oil and Natural Gas |
| 1B2ai | Oil: Exploration, production, transport |
| 1B2aiv | Oil: Refining/storage |
| 1B2av | Oil: Distribution |
| 1B2b | Natural Gas: Exploration, production, transport |
| 1B2c | Venting and flaring of oil, gas, combined oil and gas |
| 2 | Industrial Processes and Product Use |
| 2A | Mineral Products |
| 2A1 | Cement Production |
| 2A2 | Lime Production |
| 2A3 | Glass Production |
| 2A5a | Quarrying and mining of minerals other than coal |
| 2A5b | Construction and Demolition |
| 2A6 | Other mineral products |
| 2B | Chemical Industry |
| 2B1 | Ammonia Production |
| 2B10a | Other |
| 2B10b | Storage, handling and transport of chemical products |
| 2B2 | Nitric Acid production |
| 2B3 | Adipic acid production |
| 2B6 | Titanium dioxide production |
| 2B7 | Soda ash production |
| 2C | Metal production |
| 2C1 | Iron and steel production |
| 2C3 | Aluminium production |
| 2C4 | Magnesium production |
| 2C5 | Lead production |
| 2C6 | Zinc production |
| 2C7a | Copper production |
| 2C7b | Nickel production |
| 2C7c | Other metal production |
| 2D | Solvents |
| 2D3a | Domestic solvent use including fungicides |
| 2D3b | Road paving and asphalt |
| 2D3d | Coating applications |
| 2D3e | Degreasing |
| 2D3f | Dry Cleaning |
| 2D3g | Chemical Products |
| 2D3h | Printing |
| 2D3i | Other solvent use |
| 2G | Other product use (please specify in the IIR) |
| 2H | Pulp and paper industry, food and beverages industry |
| 2H1 | Pulp and paper industry |
| 2H2 | Food and beverages industry |
| 2H3 | Other industrial processes |
| 2I | Wood Processing |
| 2K | Consumption of POPs and heavy metals |
| 3 | Agriculture |
| 3B | Manure Management |
| 3B1a | Dairy cattle |
| 3B1b | Non-dairy cattle |
| 3B2 | Sheep |
| 3B3 | Swine |
| 3B4d | Goats |
| 3B4e | Horses |
| 3B4gi | Laying hens |
| 3B4gii | Broilers |
| 3B4giii | Turkeys |
| 3B4giv | Other poultry |
| 3B4h | other animals |
| 3D | Agricultural soils |
| 3Da1 | Inorganic N-fertilizers (includes urea application) |
| 3Da2a | Animal manure applied to soils |
| 3Da2b | Sewage sludge applied to soils |
| 3Da2c | Other organic fertilisers applied to soils |
| 3Da3 | Urine and dung deposited by grazing animals |
| 3Da4 | Crop residues applied to soils |
| 3Db | Indirect emissions from managed soils |
| 3Dc | Farm-level agricultural operations including storage, handling and transport of agricultural products |
| 3De | Cultivated crops |
| 3Df | Use of pesticides |
| 3F | Field burning of agricultural waste |
| 3I | Other |
| 5 | Waste |
| 5A | Solid Waste disposal on land |
| 5B | Biological treatment of waste |
| 5B1 | Composting |
| 5B2 | Biological treatment of waste - Anaerobic digestion at biogas facilities |
| 5C | Waste Incineration |
| 5C1a | Municipal waste incineration |
| 5C1bii | Hazardous waste incineration |
| 5C1biii | Clinical waste incineration |
| 5C1biv | Sewage sludge incineration |
| 5C1bv | Cremation |
| 5C2 | Open burning of waste |
| 5D | Waste-water handling |
| 5D1 | Domestic |
| 5D2 | Industrial |
| 5E | Other Waste |
| 6 | Other |
| 6A | Other |
| z_11B | Forest fires |
| z_11C | Other natural emissions (please specify in the IIR) |
| z_1A3ai(ii) | International aviation cruise (civil) |
| z_1A3aii(ii) | Domestic aviation cruise (civil) |
| z_1A3di(i) | International maritime navigation |