Home › CFR › Title 23 › Part 62423 CFR Part 624 — Interstate System Access§ 624.1— Purpose.§ 624.3— Applicability.§ 624.5— Definitions.§ 624.7— Interstate System access requirements.§ 624.9— Approval process.§ 624.11— Interstate Access Justification Report.§ 624.13— Programmatic Agreement.