In the Netherlands there exists no governmental legislation to regulate the noise from construction sites. However at the base of local rules (by-laws) the mayor of a municipality is empowered to regulate or stop activities which create nuisance. If the mayor will take action in general he will base himself at the advises which the government has laid down in two circulars which are published in 1981 and 1991.
The base of these circulars is the recommendation of a maximum equivalent sound level of 60 dB(A) in the neighborhood during the hours 07.00 - 19.00. If the total duration of the works is less than 1 month this level can be raised to 65 dB(A). In the neighborhood of schools and hospitals it is advised to set a lower limit. Check the the state of the art of the sound levels of the most used machines in the database of noise levels of outdoor machinery.
In practice the government aims in its policies to stimulate the purchase of civil equipment which is quieter than the average machines. Over the 10 years that this policy has been practiced the sound level have lowered considerably.