15 C.F.R. § 740.21
(b) Improving living conditions and supporting independent economic activity. This paragraph authorizes the export or reexport to Cuba of items designated as EAR99, or controlled on the Commerce Control List (CCL) (supplement no. 1 to part 774 of the EAR) only for anti-terrorism reasons (i.e., anti-terrorism must be the only reason for control that applies to the item as set forth in the Export Control Classification Number (ECCN) that controls the item). If any other reason for control applies to the item, it is not authorized for export or reexport by this paragraph. The item must be within one or more of the following categories:
(c) Strengthening civil society. This paragraph authorizes the export or reexport to Cuba of certain items for use in specified activities that can strengthen civil society. The items authorized pursuant this paragraph are limited to those designated as EAR99 or controlled only for anti-terrorism reasons on the CCL (i.e., anti-terrorism must be the only reason for control that applies to the item as set forth in the ECCN that controls the item). If any other reason for control applies to the item, it is not authorized for export or reexport by this paragraph. The export or reexport must be within one or more of the following categories:
(2) The temporary export or reexport to Cuba of items by travelers to Cuba for the travelers' use in scientific, archeological, cultural, ecological, educational, historic preservation, or sporting activities, or professional meetings or research. The following requirements apply:
(iv) Items authorized for temporary export by this paragraph must be returned to the United States within two years of the date of export from the United States unless:
(d) Improving communications. This paragraph authorizes the export or reexport to Cuba of certain items intended to improve the free flow of information to, from, and among the Cuban people. The items authorized pursuant to this paragraph are limited to those designated as EAR99 or controlled only for anti-terrorism reasons on the CCL (i.e., anti-terrorism must be the only reason for control that applies to the item as set forth in the ECCN that controls the item). If any other reason for control applies to the item, it is not authorized for export or reexport by this paragraph. The export or reexport must be within one or more of the following categories:
(2) The export or reexport to Cuba of items for use by news media personnel engaged in the gathering and dissemination of news to the general public and who are:
(4) The export or reexport to Cuba of commodities or software that will be used by individuals or private sector entities to develop software that will improve the free flow of information or that will support the private sector activities described in paragraph (b) of this section. The following are ineligible end-users:
(e) Facilitating engagement, communications, and commerce. This paragraph (e) authorizes the export or reexport to Cuba of certain items intended to facilitate engagement between the U.S. and Cuban people; the free flow of information to, from, and among the Cuban people; and independent economic activity in Cuba. The export or reexport must be within one or more of the following categories:
(f) Temporary exports and reexports to Cuba. This paragraph (f) authorizes the export or reexport to Cuba, for periods not exceeding one year, of certain items designated as EAR99 or controlled only for anti-terrorism reasons on the CCL (i.e., anti-terrorism must be the only reason for control that applies to the item as set forth in the ECCN that controls the item). If any other reason for control applies to the item, it is not authorized for export or reexport by this paragraph. This paragraph does not authorize any transaction if the exporter or reexporter has “knowledge” that the item is intended to remain in Cuba for more than one year; if an order to acquire the item, such as a purchase order, has been received before shipment; or when the item is for subsequent lease or rental. The export or reexport must be within one or more of the following categories.
(1) Tools of trade - commodities and software. Commodities or software to be used by the exporter or reexporter or its employees for the installation, servicing or repair of items that are subject to the EAR and that have been exported or reexported to Cuba under a license or license exception, or foreign-origin items that are not subject to the EAR that are owned and used exclusively by private sector entities in Cuba, may be exported or reexported under this paragraph (f). The commodities or software must remain under the “effective control” of the exporter or reexporter or its employees. Examples of security precautions to help prevent unauthorized access include the following:
(2) Tools of trade - technology. Technology to be used by a 'U.S. person' exporter or reexporter or its employees who are traveling to or on temporary assignment in Cuba for the installation, servicing or repair of items that are subject to the EAR and that have been exported or reexported to Cuba under a license or license exception, or foreign-origin items that are not subject to the EAR that are owned and used exclusively by private sector entities in Cuba, may be exported or reexported under this paragraph (f). For purposes of this paragraph (f)(2), a 'U.S. person' is: an individual who is a citizen of the United States, an individual who is “lawfully admitted for permanent residence” in the United States as defined by 8 U.S.C. 1101(a)(20) or an individual who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). 'U.S. person' also means any juridical person organized under the laws of the United States, or any jurisdiction within the United States (e.g., corporation, business association, partnership, society, trust, or any other entity, organization or group that is authorized to do business in the United States). If the employee who will use the technology is not a 'U.S. person,' the release of that technology to that employee must either not require a license or be authorized by a license or a license exception other than this section before it may be exported or reexported to that employee under this paragraph. The exporter or reexporter and the recipient of the technology must take security precautions to protect against unauthorized release of the technology while the technology is being shipped or transmitted and used overseas. Examples of security precautions to help prevent unauthorized access include the following:
(3) Kits of replacement “parts” or “components.” Kits consisting of replacement “parts” or “components” for items that have been exported or reexported to Cuba under a license or license exception, or foreign-origin items that are not subject to the EAR that are owned and used exclusively by private sector entities in Cuba, may be exported or reexported under this paragraph (f)(3) provided:
Note to paragraph (e): Any resulting payments associated with establishing or maintaining a physical or business presence in Cuba, such as lease payments, are permitted only to the extent authorized by 31 CFR 515.573 or a specific license issued by OFAC.
[80 FR 2289, Jan. 16, 2015, as amended at 80 FR 56902, Sept. 21, 2015; 81 FR 13974, Mar. 16, 2016; 81 FR 71367, Oct. 17, 2016]