48 C.F.R. § 27.302
(a) Introduction. In accordance with chapter 18 of title 35, U.S.C. (as implemented by 37 CFR part 401), Presidential Memorandum on Government Patent Policy to the Heads of Executive Departments and Agencies dated February 18, 1983, and Executive Order 12591, Facilitating Access to Science and Technology dated April 10, 1987, it is the policy and objective of the Government to—
(b) Contractor right to elect title.
(2) A contract may require the contractor to assign to the Government title to any subject invention—
(4) Consistent with 37 CFR part 401, when a contract with a small business concern or nonprofit organization requires assignment of title to the Government based on the exceptional circumstances enumerated in paragraph (b)(2)(ii) or (iii) of this section for reasons of national security, the contract shall still provide the contractor with the right to elect ownership to any subject invention that—
(d) Government right to receive title.
(1) In addition to the right to obtain title to subject inventions pursuant to paragraph (b)(2)(i) through (v) of this section, the Government has the right to receive title to an invention—
(ii) In any country where the contractor—
(f) March-in rights.
(1) Pursuant to 35 U.S.C. 203, agencies have certain march-in rights that require the contractor, an assignee, or exclusive licensee of a subject invention to grant a nonexclusive, partially exclusive, or exclusive license in any field of use to responsible applicants, upon terms that are reasonable under the circumstances. If the contractor, assignee or exclusive licensee of a subject invention refuses to grant such a license, the agency can grant the license itself. March-in rights may be exercised only if the agency determines that this action is necessary—
(h) Special conditions for nonprofit organizations' preference for small business concerns.
(i) Minimum rights to contractor.