Dretg naziunal 7 Ovras publicas - Energia - Traffic
Internal Law 7 Public works - Energy - Transport

72 Ovras publicas

72 Public works

721.101 Lescha federala dal 1. d'october 2010 davart ils implants d'accumulaziun (Lescha davart ils implants d'accumulaziun, LIA)
721.101 Federal Act of 1 October 2010 on Water Retaining Facilities (Water Retaining Facilities Act, WRFA)