8. What is an Enabling?

An authorisation is an official authorisation that must be entered into force in the PART FCL license for the exercise of its powers. A rating may grant you additional privileges or allow you to do something you can't do without it, such as flying at night or flying on a different class of aircraft. 

Ratings are subject to a period of validity for the exercise of flight privileges. Before the authorisation expires and to maintain the privileges in force, proceed to carry out the revalidation procedure that is applicable in accordance with the provisions of Regulation EU 1178/2011