Subchapter VI. Adopted Regional System. § 9–1111.01. Definitions. § 9–1111.02. Federal contributions. § 9–1111.03. District of Columbia contributions. § 9–1111.04. Approval for construction required. § 9–1111.05. Disposal of excess revenues. § 9–1111.06. Guarantee of obligations. § 9–1111.07. Periodic payments to Authority. [Repealed] § 9–1111.08. Authorization of appropriations. § 9–1111.09. Obligations as lawful investments. § 9–1111.10. Appropriation for Arlington Cemetery and Smithsonian transit stations. § 9–1111.11. Authorization of additional federal contributions for construction. § 9–1111.12. Payment of bonds. § 9–1111.13. Requirement that local participating governments have stable and reliable source of revenue for contributions. § 9–1111.14. Authorization of additional federal contributions for construction. § 9–1111.15. Establishment of Metrorail/Metrobus Account. § 9–1111.16. Annual report of Account. § 9–1111.17. Funding of facilities for the handicapped.