The required energy conservation measures shall be installed within the following periods:

    A.    In the case of a sale of a commercial building, upon transfer of title, except as provided in subsection B, below. If title has transferred without compliance, the responsibility of installing the measures shall be the joint responsibility of the seller and the buyer, provided however that the buyer may seek indemnification from the seller for any costs associated with compliance, but provided further that the buyer's responsibilities shall not be contingent on the buyer's ability to obtain such indemnification.

    B.    Where the buyer assumes responsibility for the installation of the required energy conservation measures upon the sale of the building, the buyer shall have fifteen months from the date title is transferred to install the required energy conservation measures.

    C.    In the case of a major renovation, installation of the required energy conservation measures shall be completed prior to the issuance of the final City approvals on building permits for such major renovation or prior to the issuance of a certificate of occupancy by the City with respect to such major renovation. (Ord. 6176-NS § 12, 1993)