'formal position' is correct and usable in written English.
You can use it to refer to an officially recognized job or rank. For example, "He was hired for the formal position of Head of Human Resources at the company."
NATO has not taken a formal position.
The White House has yet to take a formal position.
His company's formal position on climate change is more ambiguous.
He did not take a formal position on the bill passed by the House.
The committee said it would issue a formal position on the offer within 10 business days.
Washington has not taken a formal position on the sovereignty of the islands.
Beyond exploring the war's money trails, the group has taken no formal position on the war.
That is the formal position of most of the international community.
It is an act of leadership, no matter what your formal position in an organization.
Yes, Francis has taken no formal position on the issues currently in play.
Yet he had no relevant expertise and no formal position; his security clearance remained on hold.
