Translate the following English sentence to French:
"If the attempt were made to circumvent this derogation by means of EMAS, which is a voluntary system, this would probably mean that small and medium-sized companies would refrain from participating in EMAS."
Si on essaie de contourner cette exception par le biais de l'EMAS, qui est un système fondé sur le volontariat, cela aura vraisemblablement pour conséquence de dissuader les petites et moyennes entreprises d'y participer.