"directive to" is correct and usable in written English.
You can use it when you are giving or asking for instructions or advice. Example sentence: I received a directive to complete the report as soon as possible.
They become a directive to the nation.
"But, for this directive to work rigorous enforcement is needed.
"They sent a directive to their C.E.O. to green Walmart.
Eleven demonstrators were arrested after they refused a directive to move to another spot.
What was Nick Spitzer's "directive" to New York students attending the event?
Because there were two outs, Carlson's directive to Herges should have ended the game.
Contrast the European "return directive", to be voted on in the European parliament this week.
The government said its decision "does not include any directive to attack Arafat personally".
Lawmakers said employees construed the message as a directive to begin destroying records.
The problem is how a county canvassing board translates that directive to these punch cards.
(Chapter 6, "On Leads," opens with the droll directive to "follow them lest they follow you").
