Conn. Agencies Regs. § 32-9p-3
To be eligible to file a claim for a corporation business tax credit under Section 12-217e of the statutes or for the exemption from property taxes under Section 12-81(59) and Section 12-81(60) of the statutes, a claimant must present to the Commissioner of Revenue Services or the secretary of the Office of Policy and Management or the tax assessor or board of assessors of the local taxing jurisdiction, as the case may be, a current eligibility certificate issued by the Department. Eligibility certificates will be issued by the Department in accordance with the criteria established by the statutes and these regulations with respect to any facility which qualifies as a manufacturing facility and is located in a distressed municipality.
Conn. Agencies Regs. § 32-9p-3