10 CFR § 95.39 - External transmission of documents and material.
(a) Restrictions. Documents and material containing classified information received or originated in connection with an NRC license, certificate, or standard design approval or standard design certification under part 52 of this chapter must be transmitted only to CSA approved security facilities.
(b) Preparation of documents. Documents containing classified information must be prepared in accordance with the following when transmitted outside an individual installation.
(1) The documents must be enclosed in two sealed opaque envelopes or wrappers.
(2) The inner envelope or wrapper must contain the addressee's classified mail address and the name of the intended recipient. The appropriate classification must be placed on both sides of the envelope (top and bottom) and the additional markings, as appropriate, referred to in § 95.37(e) must be placed on the side bearing the address.
(3) The outer envelope or wrapper must contain the addressee's classified mailing address. The outer envelope or wrapper may not contain any classification, additional marking or other notation that indicate that the enclosed document contains classified information. The Classified Mailing Address shall be uniquely designated for the receipt of classified information. The classified shipping address for the receipt of material (e.g., equipment) should be different from the classified mailing address for the receipt of classified documents.
(4) A receipt that contains an unclassified description of the document, the document number, if any, date of the document, classification, the date of transfer, the recipient and the person transferring the document must be enclosed within the inner envelope containing the document and be signed by the recipient and returned to the sender whenever the custody of a Secret document is transferred. This receipt process is at the option of the sender for Confidential information.
(c) Methods of transportation.
(i) U.S. Postal Service Express Mail and U.S. Postal Service Registered Mail.
The “Waiver of Signature and Indemnity” block on the U.S. Postal Service Express Mail Label 11-B may not be executed and the use of external (street side) express mail collection boxes is prohibited.
(ii) A cleared “Commercial Carrier.”
(iii) A cleared commercial messenger service engaged in the intracity/local area delivery (same day delivery only) of classified material.
(iv) A commercial delivery company, approved by the CSA, that provides nationwide, overnight service with computer tracing and reporting features. These companies need not be security cleared.
(v) Other methods as directed, in writing, by the CSA.
(2) Confidential matter may be transported by one of the methods set forth in paragraph (c)(1) of this section, by U.S. express or certified mail. Express or certified mail may be used in transmission of Confidential documents to Puerto Rico or any United States territory or possession.
(d) Telecommunication of classified information. Classified information may not be telecommunicated unless the telecommunication system has been approved by the CSA. Licensees, certificate holders or other persons who may require a secure telecommunication system shall submit a telecommunication plan as part of their request for facility clearance, as outlined in § 95.15, or as an amendment to their existing Standard Practice Procedures Plan for the protection of classified information.
(e) Security of classified information in transit. Classified matter that, because of its nature, cannot be transported in accordance with § 95.39(c), may only be transported in accordance with procedures approved by the CSA. Procedures for transporting classified matter are based on a satisfactory transportation plan submitted as part of the licensee's, certificate holder, or other person's request for facility clearance or submitted as an amendment to its existing Standard Practice Procedures Plan.