Federal Act
on the Amendment of the Swiss Civil Code
(Part Five: The Code of Obligations)

¹ A per­son who pub­licly prom­ises re­mu­ner­a­tion or a re­ward in ex­change for the per­form­ance of an act must pay in ac­cord­ance with his prom­ise.

² If he with­draws his prom­ise be­fore per­form­ance has been made, he must re­im­burse any per­son in­cur­ring ex­pendit­ure in good faith on ac­count of the prom­ise up to the max­im­um amount prom­ised un­less he can prove that such per­son could not have provided the per­form­ance in ques­tion.