The Commission has determined that only the following documents may be relied upon by any employer as a “ruling, approval or interpretation” or as “evidence of any administrative practice or enforcement policy” of the Commission within the meaning of the statutory provisions quoted above.
(2) A written document issued in the conduct of litigation, entitled “opinion letter,” signed by the General Counsel on behalf of and as approved by the Commission;
(3) A matter published and specifically designated as such in the Federal Register.
