A utility must submit a transmittal letter with all tariff and contract filings. The transmittal letter must:

(1) Identify all new tariffs or contracts, or identify the tariff or contract changes;

(2) Explain in understandable terms why the tariff or contract filing is being submitted;

(3) Specify the changes requested in clear and concise terms and define any acronyms used;

(4) Refer to the commonly used name of the service, the advice number, if known, and the docket number, if applicable;

(5) Include the advice number if the utility uses consecutively numbered advice letters;

(6) Describe the general effect of, and reasons for, tariff or contract filings involving only text changes;

(7) Describe which services are affected, and the dollar amount and percentage of increase or decrease if the filing is a rate change. If a combination of changes is filed (i.e., increases and decreases), each change should be described, as well as the net effect on company revenues; and

(8) If the utility does not include an authorizing signature on the tariff sheets, include a statement certifying that the submitting person has authority to issue tariff revisions on behalf of the utility.