Hartford, Conn., Mun. Code ch. 18 § 18-27

A. A license provides the right to operate the housing or housing units as set forth in the application, as amended or supplemented pursuant to section 18-26 of this Code.
B. Upon receipt of the license, and for the terms and duration and subject to the conditions of the license, an owner of housing or housing units may operate the housing or housing units, as applicable, and otherwise allow the housing or housing units to be occupied.
C. The issuance of a license shall not relieve the owner and operator of the responsibility to make general repairs pursuant to chapter 9 of the Code, maintain fire protection equipment pursuant to chapter 13 of the Code, manage solid waste pursuant to chapter 15 of the Code, maintain housing standards consistent with chapter 18 of the Code, maintain and preserve historic housing as required by chapter 28 of the Code, repair and clear of sidewalks and public ways pursuant to chapter 31 of the Code, maintain landscaping (including trees and green infrastructure) pursuant to the zoning regulations and chapter 28 of Code, and perform other responsibilities required by any other law, rule, or regulation.
D. Failure to obtain a license or the operation of housing without a license as required by this chapter shall be a violation of this chapter and may result in fines and penalties as prescribed herein, and each housing unit that is occupied without such a license shall be a separate violation.
E. A valid and unexpired license shall be deemed to be a certificate of apartment occupancy for the purposes of satisfying the requirement established in G.S. § 47a-57. No application for or issuance of a separate certificate of apartment occupancy is required of any building which is licensed pursuant to this Article.