(a) The Department may deny or limit access under this subpart where providing the requested access would be unduly burdensome.

(b) Access under this subpart to classified information is governed by Executive Order 12958 and 28 CFR 17.46. Requests for access to classified information must be submitted to (or will be referred to) the Department Security Officer and may be granted by the Department Security Officer in consultation with the appropriate component head.

(c) Nothing in this subpart shall be construed to supplant the operation of other applicable prohibitions against disclosure.

(d) This subpart is not intended to, does not, and may not be relied upon to, create any right or benefit, substantive or procedural, enforcecable at law by a party against the United States.