52 Pa. Code § 23.27 – Symbols used in tariff body.

(a) In addition to the notice placed upon the title page set forth in § 23.21 (relating to title page) and the list of changes prescribed by the provisions of § 23.22 (relating to list of changes made by tariff) the following symbols shall be shown in the body of the tariff immediately in connection with the rate or rule affected, unless the tariffs are likewise filed with a Federal agency, where the Federal symbol may be used with explanation.
(b) On the bottom of each of the pages upon which symbols are shown, or in a list of abbreviations referred to, the following explanation shall be made:
(c) In cases where a change of the same character is made throughout an entire schedule or supplement or on a page thereof, that fact and the nature of such change may be indicated in distinctive type at the top of the title page or at the top of each page.