(S-90) All Agency personnel are required to sign a one-time non-disclosure agreement (NDA) which lasts for the duration of DISA employment. In addition, Contracting Officers will require a separate signed source selection specific NDA for any individual(s) with access to selection sensitive information for which disclosure should be limited.

(S-91) Any e-mail relating to an acquisition (e.g., discussing details or providing requirement documents) must be digitally signed/encrypted. See DISAI 630- 230-30 for e-mail security practices for the transmission of sensitive but unclassified information.