Authorisation to exceed the maximum average weekly working time provided for in article L. 3121-25 may be granted in one of the following ways:
1° If the average weekly working time of forty-six hours is exceeded over a period of twelve consecutive weeks;
2° If the average weekly working time is exceeded over a period of more than twelve weeks;
3° If a combination of the above two methods is used.
The authorisation decision specifies the type, extent and other conditions of the authorised excess.