04 NCAC 11 R04-04
(d) All tariffs, supplements and revised pages shall indicate changes from preceding issues by a printer's tear drop symbol or (R) to denote reductions, a symbol in the shape of a diamond or (A) to denote increases or a symbol in shape of a triangle or (C) to denote changes resulting in neither increases nor reductions. The proper symbol must be shown directly in connection with each change.
(NCUC Docket No. M‑100, Sub 75, 10/27/77; NCUC Docket No. M-100, Sub 128, 04/10/00; NCUC Docket No. T-100, Sub 49, 01/09/04.)