CFR›Title 48›Chapter 5›Part 511›Subpart 511.1 ContainsSection 511.171CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart 511.1—Selecting and Developing Requirements Documents Sections 511.171 511.171 Requirements for GSA Information Systems. Next 511.2 Subpart 511.2—Using and Maintaining Requirements Documents