Federal Act
on the Protection of Waters
(Waters Protection Act, WPA)

¹If a sur­face or un­der­ground body of wa­ter cov­ers ter­rit­ory from more than one can­ton, each of the can­tons con­cerned shall take all ne­ces­sary meas­ures to pro­tect that body of wa­ter and in the in­terests of the oth­er can­tons.

²If the can­tons in ques­tion can­not agree on the meas­ures to be taken, the Fed­er­al Coun­cil shall de­cide.