Conn. Agencies Regs. § 16-11-89
Each utility shall, upon written request of a customer and, if he so desires, in his presence, or that of his authorized representative, make without charge a test of the accuracy of the meter in use at his premises, if the meter has not been tested by the company within the period of one year previous to such request and provided the customer shall agree to abide by the results of such test as the basis for any adjustment of disputed charges. Upon such request by a customer, or upon an order for a meter test made by the department, the company shall notify the customer, in writing and within one week of the request for the meter test, that he, or his authorized representative, has the right to be present at the meter test. If said customer, or his authorized representative, desires to be present at the meter test, the customer or his authorized representative shall contact the company within 10 (ten) days of the written notification to arrange to be present at the test. Upon such notification, the company shall schedule a meter test, at a time during the normal operating hours of the company's meter testing facility, which is convenient to both the customer, or his authorized representative, and the company, as soon as possible. A written report of the results of the test shall be furnished the customer.
Conn. Agencies Regs. § 16-11-89