access to classified information or eligibility to hold a sensitive position in accordance with Executive Order 12968 of August 2, 1995, as amended. (F) To ensure reciprocal recognition of eligibility for access to classified information or eligibility to hold a sensitive position among the agencies, including acting as the final authority to arbitrate and resolve disputes among the agencies involving the reciprocity of investigations and adjudications of eligibility. (3) Authorities The Security Executive Agent may— (A) issue guidelines and instructions to the heads of agencies to ensure appropriate uniformity, centralization, efficiency, effectiveness, timeliness, and security in processes relating to determinations by agencies of eligibility for access to classified information or eligibility to hold a sensitive position, including such matters as investigations, polygraphs, adjudications, and reciprocity