; (B) public presentations; or (C) non-commercially available services or systems. (2) Conditions (A) In general A gift may be accepted pursuant to this subsection only if it is in furtherance of a research and development plan established under subsection (b). (B) Limitations The Commission may not accept a gift if— (i) conditions inconsistent with applicable laws or regulations apply to the gift; (ii) the gift is conditioned on, or will require, the expenditure of appropriated funds not available to the Commission; (iii) using a standard contract or other transaction authority under subsection (c) to acquire the gift is either feasible or appropriate; or (iv) acceptance of the gift would— (I) reflect unfavorably on the ability of the Commission to carry out its responsibilities or official duties in a fair and objective manner, or compromise the integrity or the appearance of the integrity of its programs or any official involved in its programs, or (II) give the endorsement or the appearance of the endorsement by the Commission or Commission staff of the products, services, activities, or policies of the donor. (C) Solicitation prohibition (i) In general Except as provided in clause (ii), no gift may be solicited by any Commissioner, employee of, or contractor at the Commission. (ii) Exception A Commissioner or employee of the Commission may solicit only for a gift described in paragraph (1)(B). (D) Duration To the extent applicable, the Commission shall return any gift accepted pursuant to this subsection within 90 days after accepting the gift. (E) Rules The Commission shall, after notice and comment, establish and publish written rules setting forth the manner and criteria to be used in determining whether a gift meets the conditions of this paragraph. (3) Disclosure Within 30 days after accepting a gift pursuant to this subsection, the Commission shall publish in the Federal Register a notice detailing— (A) the source of the gift; (B) the nature of the gift