Tennessee Code Title 65. Public Utilities and Carriers § 65-5-402

(a) Upon request or application for a connection of utility service by a customer, a utility system shall promptly provide the customer the connection cost.

(b) A customer may request the utility system provide the customer connection cost in writing along with a written itemized and detailed description of the costs that comprise the connection cost. Upon receipt of a request, the utility system shall promptly provide the customer the connection cost in writing along with a written itemized and detailed description of the costs that comprise the connection cost.

(c) If a utility cannot promptly provide to the customer the connection cost, the connection cost in writing, or a written itemized and detailed description of the costs that comprise the connection cost, then the utility shall within fourteen (14) days from completion of the approved design:

(d) To aid a customer, a utility may provide the customer a verbal or unofficial initial approximation of the connection cost. However, an approximation is not considered an attempt to comply with subsections (a)-(c).