CFR › Title 48 › Part 1513Part 1513 — Simplified Acquisition Procedures§ 1513.000— Scope of part.Subpart 1513.1 — General§ 1513.170-1— Contents of sole source justifications.Subpart 1513.5 — Purchase Orders§ 1513.505— Purchase order and related forms.§ 1513.507— Contract clauses.