C. Federal law and cantonal law
I. Cantonal civil law and local custom
1 Insofar as federal law reserves the application of cantonal law, the cantons may enact or repeal civil law provisions.
2 Where the law makes reference to practice or local custom, the existing cantonal law is deemed a valid expression thereof, provided no divaergent practice is shown to exist.
C. Dretg federal e dretg chantunal
I. Dretg civil chantunal ed isanza locala
1 Ils chantuns èn autorisads da decretar u d’abolir disposiziuns dal dretg civil, uschenavant ch’il dretg federal resalva quai al dretg chantunal.
2 Nua che la lescha renviescha a la pratica u a l’isanza locala, vala il dretg chantunal vertent sco expressiun da quellas, uschè ditg ch’ina pratica divaergenta n’è betg cumprovada.
