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

¹ Fed­er­al pay­ments made in er­ror shall be re­claimed. This also ap­plies if an in­stall­a­tion or piece of equip­ment is used for a pur­pose oth­er than that in­ten­ded.

²The Con­fed­er­a­tion’s right to bring claims pre­scribes three years after the date on which it learned of its claim and in any event ten years after the date on which the right first arose.⁷²

³ If the re­cip­i­ent has com­mit­ted a crim­in­al of­fence through his or her con­duct, the right to a re­fund pre­scribes at the earli­est when the right to pro­sec­ute the of­fence pre­scribes. If the right to pro­sec­ute is no longer li­able to pre­scrip­tion be­cause a first in­stance crim­in­al judg­ment has been is­sued, the right pre­scribes at the earli­est three years after no­tice of the judg­ment is giv­en.⁷³