Vertaling van "substantial efforts would therefore be necessary " (Nederlands → Frans) :

Substantial efforts would therefore be necessary to make appropriate use of the EU’s structural instruments.
La Turquie devra donc déployer des efforts considérables pour faire un usage adapté des instruments structurels de l'UE.

However, the conditions attached the regulation are still restrictive and substantial efforts continue to be necessary to achieve alignment with the acquis .
Toutefois, le règlement est assorti de conditions qui restent restrictives et des efforts conséquents s'imposent pour achever l'alignement sur l'acquis.