22 CFR 120.56: Release.

(a) Release. Technical data is released through:

(1) Visual or other inspection by foreign persons of a defense article that reveals technical data to a foreign person;

(2) Oral or written exchanges with foreign persons of technical data in the United States or abroad;

(3) The use of access information to cause or enable a foreign person, including yourself, to access, view, or possess unencrypted technical data; or

(4) The use of access information to cause technical data outside of the United States to be in unencrypted form.

(b) Provision of access information. Authorization for a release of technical data to a foreign person is required to provide access information to that foreign person, if that access information can cause or enable access, viewing, or possession of the unencrypted technical data.