The Commissioner of Economic and Community Development may issue an eligibility certificate for a program under section 32-9j, 32-9p, 32-9r or 32-9t to a business that has a North American Industrial Classification code, provided the business meets the specifications of the Standard Industrial Classification Manual code, in said section 32-9j, 32-9p, 32-9r or 32-9t. Nothing in this section shall be construed to allow the commissioner to expand eligibility for any benefit conferred by the issuance of such a certificate to a business that would not have been eligible due to its Standard Industrial Classification Manual code.