Translate the following English sentence to French:
"What we now finally have to adopt a position on in this Chamber is a regulation which would give us tougher rules but also acceptable margins within which industry could successfully complete the changeover."
Ce sur quoi nous devons définitivement prendre position dans cet hémicycle, c'est un règlement qui nous fournisse des règles plus sévères, mais aussi des marges acceptables qui permettent à l'industrie de se reconvertir.