23 CFR § 636.107
May contracting agencies use geographic preference in Federal-aid design-build or public-private partnership projects?
May 21, 2020
No. Contracting agencies must not use geographic preferences (including contractual provisions, preferences or incentives for hiring, contracting, proposing, or bidding) on Federal-aid highway projects, even though the contracting agency may be subject to statutorily or administratively imposed in-State or local geographical preferences in the evaluation and award of such projects.
[72 FR 45336, Aug. 14, 2007]