CFR › Title 48 › Part 3415Part 3415 — Contracting by NegotiationSubpart 3415.2 — Solicitation and Receipt of Proposals and Information§ 3415.209— Solicitation provisions and contract clauses.Subpart 3415.3 — Source Selection§ 3415.302-70— Two-phase source selection.Subpart 3415.6 — Unsolicited Proposals§ 3415.605— Content of unsolicited proposals.§ 3415.606— Agency procedures.