The restoration bill states that the reconstruction must create a cathedral that is faithful to the “last known visual state” of the building, reports French newspaper Le Monde.
It also says that the restoration must recreate Eugène Viollet-le-Duc’s spire, and that any use of new materials will need to be justified.
The French Senate – the upper house of the French parliament – adopted the text late on Monday night. Senators added the clauses to the bill created by the National Assembly, the French parliament’s lower house.
Députés of the National Assembly and senators both have to agree on the text before the bill can move forward. Once passed by both houses, it will determine how the restoration of the state-owned building proceeds.