(a)
The importation of Iranian-origin services into the United States or other dealing in such services is authorized where such services are performed in the United States by an Iranian citizen or national for the purpose of, or which directly relate to, participating in a public conference, performance, exhibition or similar event, and such services are consistent with that purpose.
(b)
Persons otherwise qualified for a non-immigrant visa under categories A-3 and G-5 (attendants, servants and personal employees of aliens in the United States on diplomatic status), D (crewmen), F (students), I (information media representatives), J (exchange visitors), M (non-academic students), O and P (aliens with extraordinary ability, athletes, artists and entertainers), Q (international cultural exchange visitors), R (religious workers), or S (witnesses) are authorized to carry out in the United States those activities for which such a visa has been granted by the U.S. State Department.
(c)
Persons otherwise qualified for a visa under categories E-2 (treaty investor), H (temporary worker), or L (intra-company transferee) and all immigrant visa categories are authorized to carry out in the United States those activities for which such a visa has been granted by the U.S. State Department, provided that the persons are not coming to the United States to work as an agent, employee or contractor of the Government of Iran or a business entity or other organization in Iran.
Code of Federal Regulations
[64 FR 20173, Apr. 26, 1999, as amended at 64 FR 58791, Nov. 1, 1999]