Subchapter IV. General Provisions. § 7–171. Chief Clerk and Chief Inspector not to act as deputy. § 7–172. Assistant Director of Public Health to be physician and discharge duties of health officer during his absence or disability. § 7–173. Inspector of Fish and Other Marine Products. § 7–174. Certain ordinances of Board of Health legalized — Generally; exceptions. § 7–175. Certain ordinances of Board of Health legalized — Titles. § 7–176. Certain ordinances of Board of Health legalized — Force and effect; exemptions from enforcement; alternative sanctions; adjudication of infractions. § 7–177. Certain ordinances of Board of Health legalized — Alteration, amendment, or repeal. § 7–178. Reception, burial, and identification of ashes of certain cremated indigent persons. § 7–179. Dairy Inspector may act as Inspector of Livestock. § 7–180. Tuberculosis Sanatoria and District of Columbia General Hospital.