Home › CFR › Title 24 › Part 4024 CFR Part 40 — Accessibility Standards for Design, Construction, and Alteration of Publicly Owned Residential Structures§ 40.1— Purpose.§ 40.2— Definition of “residential structure”.§ 40.3— Applicability.§ 40.4— Standards.§ 40.6— Records.§ 40.7— Availability of Accessibility Standards.