Translate the following sentence to French:
The Globally Harmonised System of Classification should allow the use of methods not involving tests on animals, even if their validation supposes a long and costly bureaucratic process.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Le système général harmonisé de classification devrait permettre l'utilisation de méthodes n'impliquant pas d'essais sur des animaux, même si leur validation nécessite une procédure bureaucratique longue et coûteuse.