Waters Protection Ordinance (WPO) (WPO)

HomeHome01 General Provisions01 General Provisions02 Disposal Of Wastewater02 Disposal Of Wastewater03 Disposal Of Sludge03 Disposal Of Sludge04 Requirements For Animal Husbandry Farms04 Requirements For Animal Husbandry Farms05 Protection For Waters In Terms Of Area Planning05 Protection For Waters In Terms Of Area Planning06 Maintaining Appropriate Rates Of Residual Water06 Maintaining Appropriate Rates Of Residual Water07 Prevention And Remediation Of Other Harmful07 Prevention And Remediation Of Other Harmful08 Enforcement08 Enforcement09 Federal Wastewater Charge09 Federal Wastewater Charge10 Payment Of Federal Contributions10 Payment Of Federal Contributions11 Commencement11 Commencement12 Transitional Provision To The Amendment Of 1812 Transitional Provision To The Amendment Of 1813 Transitional Provisions To The Amendment Of 413 Transitional Provisions To The Amendment Of 414 Transitional Provision To The Amendment Of 2514 Transitional Provision To The Amendment Of 2515 Transitional Provision To The Amendment Of 415 Transitional Provision To The Amendment Of 416 Transitional Provision To The Amendment Of 1616 Transitional Provision To The Amendment Of 1617 Transitional Provision To The Amendment Of 2917 Transitional Provision To The Amendment Of 29

AS 2011 1955

English is not an official language of the Swiss Confederation. This translation is provided for information purposes only and has no legal force.

1 The cantons shall specify the space provided for waters in accordance with Articles 41a and 41b by 31 December 2018.

2 Until they have specified the space provided for waters, the regulations on installations in accordance with Article 41c paragraphs 1 and 2 apply along waters with a margin on each side with a width in each case of: a. 8 m plus the width of the existing channel bed in the case of watercourses with a channel bed of no more than 12 m width; b. 20 m in the case of watercourses with an existing channel bed of more than 12 m width; c. 20 m in the case of standing waters with a surface area of more than 0.5 ha. 3 Instead of the criteria under Article 54b paragraph 1 letters a and b, the level of the compensatory payments for rehabilitation operations carried out on watercourses before 31 December 2028 may be determined by the extent of the measures. 4 Article 54b paragraph 5 does not apply to rehabilitation operations carried out before 31 December 2015.

Amended by No I 1 of the O of 31 May 2024 on Amendments to Secondary Legislation on the Environment, in particular in relation to the programme agreements for the programme period 2025–2028, in force since 1 Jan. 2025 (AS 2024 252).

Official text on Fedlex — consolidation of 1 December 2025

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