What does Section E cover in ISIC Rev. 5?

Section E in ISIC Rev. 5, published by the UN Statistics Division, covers water supply, sewerage, waste management and remediation activities. It brings together the collection and treatment of water, the handling of wastewater, the collection and disposal of waste, and the recovery of materials and the cleanup of contaminated sites. The common thread is stewardship of water and material flows after production and consumption, rather than the production of goods. As with every section, this guide describes the classification only and does not determine any reader’s code, principal activity or registration.

What is the common thread running through such different services?

Water, wastewater, waste and contaminated land do not look alike, but they share a position in the economy: they deal with flows after production and consumption. Water is collected, treated and supplied. Wastewater is collected and treated. Waste is collected, treated and disposed of. Materials are recovered for reuse. Contaminated sites are cleaned up. In each case the work manages something that has already been produced, used or discharged, rather than producing a new good for sale. That stewardship thread is what gathers these services into one section, even though the daily work of a water plant, a sewer network, a waste site and a remediation team looks very different.

Which services make up Section E?

The following kinds of work are described in ISIC Rev. 5, published by the UN Statistics Division, as part of this grouping:

• Water collection, treatment and supply
• Sewerage activities
• Waste collection, treatment and disposal
• Materials recovery
• Remediation activities and other waste management services

That list is an orientation aid, not a substitute for the full class description. Where an activity in section e seems to fit a heading but not the detail, the detail in the Rev. 5 publication should prevail, and the national institute should be consulted for a formal record. ## How does a city service illustrate several parts at once?

A city service that collects household waste, sorts recyclable material and operates a treatment site illustrates several parts of Section E at once, because it spans collection, recovery and treatment in one organisation. That breadth is common in public services, and it does not collapse the distinctions between the parts. The collection rounds are one kind of work, the sorting for recovery is another, and the treatment site is a third. A statistical description can recognise all three without pretending they are one activity, and a register record for a multi activity unit will reflect the principal activity rule applied by the statistical office, not a guide’s guess.

Contrast a company that only sells waste bins. Bins are objects used in waste handling, but selling them is trade, not the service of collecting, treating or recovering waste. The object handled is the same, in a loose sense, but the work is different: selling a container versus operating a service. Section E describes the service, not the equipment sold to support it.

What is not in Section E, even when water or waste is involved?

Making a water pump or building a treatment plant is not the same as operating water or waste services. Section E describes the service of collecting, treating, recovering or cleaning up, while construction and manufacturing are described elsewhere in ISIC Rev. 5, published by the UN Statistics Division. The pump factory produces equipment. The construction crew creates the plant. The Section E unit operates the plant, the network or the cleanup, day after day. As with Section D, the same asset can move between those descriptions over its life, and the work at each stage decides which description applies at that stage.

How should a reader navigate the levels inside Section E?

Think of the classification as a set of nested levels, each more specific than the last. In ISIC Rev. 5, published by the UN Statistics Division, the section is the broadest level, the division narrows it, the group narrows it further, and the class describes the specific activity. A grouping is useful only when it is read together with its neighbours, because neighbours show what the grouping excludes as well as what it includes. The full publication gives those descriptions, and this guide only explains how to move through them. If the activity in mind sits near a boundary, reading both neighbouring descriptions before choosing the better statistical fit is the sensible step, and the explanatory notes give detail that a short guide cannot cover.

National practice can colour a boundary case in section e, especially where a country has a large local industry or a distinct way of organising a service. The international description remains the shared reference, but the national version and the statistical office guidance show how that reference is applied locally, and both should be consulted for a formal record.

All code statements on section e in this guide trace back to the UN Statistics Division classification detail and the ISIC Rev. 5 publication in the frontmatter.

This guide is general information about a statistical classification and nothing beyond that. It does not determine a reader’s code, principal activity or registration, and those must be confirmed with the national statistical institute or business register that holds the record.