CRTC Tariff Regulations (SOR/79-555)

10 (1) The following reference marks shall be used in tariffs only to indicate changes in the rates, charges or in the wording of tariffs:

♦	or	(A)— to denote increases;
	or	(R)— to denote reductions;
▲	or	(C)—  to denote changes in wording where neither an increase nor reductions in rates or charges results therefrom;
●	or	(NC)— to denote no change in rates or charges;
*	or	(N)— to denote new rates or charges;
☐	or	(S)— to denote reissued matter.

(2) The reference marks set out in subsection (1) shall be so placed in the text of a tariff to indicate as nearly as possible where the actual change in a rate, charge or in the wording of the tariff occurred.