Below are possible answers for the crossword clue Official authorisation.
9 letter answer(s) to official authorisation
CLEARANCE
permission to proceed; "the plane was given clearance to land"
the distance by which one thing clears another; the space between them
vertical space available to allow easy passage under something
7 letter answer(s) to official authorisation
MANDATE
a document giving an official instruction or command
a territory surrendered by Turkey or Germany after World War I and put under the tutelage of some other European power until they are able to stand by themselves
assign authority to
assign under a mandate; "mandate a colony"
make mandatory; "the new director of the school board mandated regular tests"
the commission that is given to a government and its policies through an electoral victory
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