Chapter 44. Harbor Regulations. § 22–4401. Harbor regulations; authority vested in Council; compliance with federal law required; District and federal statutes and regulations supplemented. [Repealed] § 22–4402. Throwing or depositing matter in Potomac River. § 22–4403. Deposits of deleterious matter in Rock Creek or Potomac River. § 22–4404. Penalties for violation of § 22-4403.