Home › CFR › Title 48 › Part 51548 CFR Part 515 — Contracting by NegotiationSubpart 515.2 — Solicitation and Receipt of Proposals and Information§ 515.204— Contract format.§ 515.209— Solicitation provisions and contract clauses.§ 515.209-70— Contract clause.Subpart 515.3 — Source Selection§ 515.305— Proposal evaluation.§ 515.305-70— Use of outside evaluators.Subpart 515.4 — Contract Pricing§ 515.408— Solicitation provisions and contract clauses.