| 1/00 | Liquid carbonaceous fuels |
| 1/02 | Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only |
| 1/04 | Liquid carbonaceous fuels essentially based on blends of hydrocarbons |
| 1/06 | Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition |
| 1/08 | Liquid carbonaceous fuels essentially based on blends of hydrocarbons for compression ignition |
| 1/10 | Liquid carbonaceous fuels containing additives |
| 1/12 | Liquid carbonaceous fuels containing additives Inorganic compounds |
| 1/14 | Liquid carbonaceous fuels containing additives Organic compounds |
| 1/16 | Liquid carbonaceous fuels containing additives Organic compounds Hydrocarbons |
| 1/18 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen |
| 1/182 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen containing hydroxy groups; Salts thereof |
| 1/183 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen containing hydroxy groups; Salts thereof at least one hydroxy group bound to an aromatic carbon atom |
| 1/185 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Ethers; Acetals; Ketals; Aldehydes; Ketones |
| 1/188 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Carboxylic acids; Salts thereof |
| 1/189 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Carboxylic acids; Salts thereof having at least one carboxyl group bound to an aromatic carbon atom |
| 1/19 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Esters |
| 1/192 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Macromolecular compounds |
| 1/195 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds |
| 1/196 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and a carboxyl group or salts, anhydrides or esters thereof |
| 1/197 | Liquid carbonaceous fuels containing additives Organic compounds containing oxygen Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and an acyloxy group of a saturated carboxylic or carbonic acid |