Chapter 5. Manufacture, Renovation, and Sale of Mattresses. § 8–501. Definitions. § 8–502. Unlawful acts. § 8–503. Label requirements. § 8–504. Guaranty of manufacturer as defense; prosecution of manufacturer outside District. § 8–505. Violations of § 8-502, § 8-504, or § 8-507. § 8–506. Administration of chapter. § 8–507. Investigations. § 8–508. Seizure and destruction of mattresses.