Hartford, Conn., Mun. Code ch. 18 § 18-93

A. The owner or operator shall ensure that doors to rooming units from outdoor areas, common areas, hallways, and lobbies shall have operating locks to ensure privacy.
B. The owner or operator must provide clean linens and towels upon letting any rooming unit, and at least once each week thereafter, for occupants who occupy a rooming unit on a daily or weekly basis. The owner and operator shall maintain supplied bedding in a clean and sanitary manner.
C. The person who obtains a license for a rooming house shall reside in the rooming house. No license or license renewal for a rooming house shall be issued when neither an owner nor operator is a bona fide resident of the property.
D. The owner must display a copy of any city license in a conspicuous place within the common areas of the housing, and the floor plan must be displayed in a central common area, in a conspicuous place, on the main floor of the rooming house, together with a notice that violations of this article may be reported anonymously by calling 311.
E. The licensee of every such rooming house must keep in the office, or other place on the premises, a register in which shall be entered the name and permanent residence, if any, of every person who becomes an occupant thereof. Such register shall also show the number or location of the room or bed occupied by such person, with dates of arrival, and departure. The register shall also be accessible, without charge, to any duly authorized agent of the department of development services.
F. Each rooming house shall have a doorbell at the principal entrance for the rooming house, which rings in a common area and is audible within the rooming units. Each rooming unit shall have a doorbell.