This class includes the collection of garbage, trash, rubbish and waste whether from households or from industrial or commercial units, its transportation and disposal by incineration or by other means, and the removal, whether via drains, sewers or by other means, of human waste products and their treatment and disposal. This involves also waste reduction, ash collection, the collection of refuse in litter boxes in public places, the removal of building debris, dumping of refuse on land or in water, burial or ploughing-under of refuse and storm sewerage, emptying and cleaning of cesspools and septic tanks, servicing of chemical toilets, dilution, screening and filtering, sedimentation, chemical precipitation, activated sludge treatment and other processes for sewage disposal and also the maintenance of sewers and drains. Also included are outdoor sweeping and watering of streets, paths, parking lots, etc., and snow and ice cleaning on highways (including spreading of salt or sand), airport runways, etc.

Exclusions: Pest control in connection with agriculture is classified in class 0140 (Agricultural and animal husbandry service activities, except veterinary activities).

Recycling of waste is classified in the appropriate class of division 37 (Recycling).

Collection, purification and distribution of water are classified in class 4100.

Construction and repair of sewerage systems is classified in class 4520 (Building of complete constructions or parts thereof; civil engineering).

Disinfecting and exterminating activities in buildings are classified in class 7493 (Building-cleaning activities).