Type | Built-In Safeguards Against Fire Hazards |
| D (Diesel forklift) | Minimum |
| DS | D + additional for fuel, exhaust and electrical systems |
| DY | DS + all electrical equipment enclosed |
| E (Electrical forklift) | Minimum |
| ES | E + prevents sparks and limits surface temperatures |
| EE | ES + all electrical motors and equipment completely enclosed |
| EX | Can be used in flammable vapro or duct atmospheres |
| G (Gasoline forklift) | Minimum |
| GS | G + additional for fuel, exhaust and electrical systems |
| LP | G + minimum safeguards for liquid petroleum gas |
| LPS | LP + additional for fuel, exhaust and electrical systems |
