National Sanitation Utility
Tunisian public industrial and commercial establishment responsible for managing the sanitation sector, created in 1974.
Last updated September 16, 2026
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Overview
Office National de l'Assainissement (ONAS) is a Tunisian public establishment of an industrial and commercial character. It was created in 1974 with the mission of managing the sanitation sector. Its activities include operation and maintenance, sanitation projects for industrial zones, working-class neighbourhoods and rural areas, studies, and research and development. It also engages in technical and financial cooperation with international partners.
History
ONAS was created in 1974 as a public establishment of an industrial and commercial character with the mission of managing the sanitation sector in Tunisia.
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