Small non-road equipment
The emissions requirements for engines for small non-road equipment (less than 19 kW) form part of the emissions legislation on non-road mobile machinery (NRMM), with specific classes for small hand-held and non hand-held equipment. The type of equipment is very varied.
Hand-held equipment includes:
- chain saws and portable saw mills,
- edge trimmers, string trimmers and rotary tillers
- sprayers and vacuum equipment
Non hand-held equipment includes:
- portable generators and irrigation pumps
- ride-on and pedestrian-controlled lawn mowers, lawn sweepers and waste disposers
- golf carts
- welders and air compressors
Unlike vehicles, where the complete vehicle is tested, the emissions test for small equipment uses only the engine, as the same type of engine may be used in very many different applications.
The engines used for small non-road equipment have similar constraints on size as do motorcycles – in many cases even greater constraints. It is, though, still possible to fit a catalyst and many are now in use on this type of equipment.