ISIC REV. 4 · DIVISION 37
Sewerage
Activity scope
Sewerage
This activity belongs to Water & environmental services / Sewerage. The classification describes economic activities; company inclusion still requires a qualifying business record.
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Classification source
United Nations Statistics Division, ISIC Revision 4. Official English structure retrieved October 3, 2026. Broad navigation labels are simplified by COMPANY CORE.
View official classification structureRevision 5 is a separate standard. This directory keeps Revision 4 identifiers for compatibility with its existing records.