{'rm': 'La conclusiun dal contract collectiv da lavur, sia midada e sia aboliziun tras ina cunvegna da las partidas, la participaziun d’ina nova partida contrahenta sco er la disditga èn mo valaivlas, sch’ellas vegnan fixadas en scrit; il medem vala per la decleraziun da participaziun da singuls patruns e da singuls lavurants, per il consentiment da las partidas contrahentas tenor l’artitgel 356b alinea 1 sco er per la disditga da la participaziun.', 'en': 'The conclusion of a collective employment contract, its amendment and termination by mutual agreement, the accession of a new contracting party and notice to terminate the contract are valid only if done in writing, as are declarations of accession by individual employers or employees, the consent to such accession by the contracting parties pursuant to Article 356b paragraph 1 and notice to withdraw from the contract.'}