3. (1) Instrument transformers that are designed and constructed to have fixed, non-adjustable accuracy characteristics are exempted from subsection 9(1) of the Act.

(2) A gas meter with a broken seal is exempt from the requirement that it not be continued in use until it has been reverified under subsection 15(2) of the Act if all of the following conditions are satisfied:

• (a) the seal was deliberately broken by an inspector or accredited meter verifier for the purpose of installing or removing a device that transmits the reading of the meter to a remote location;

• (b) no components of the meter other than the register cover and the register have been removed from the meter;

• (c) any component that has been removed from the meter has been promptly replaced such that the reading of the register is unchanged except for, in cases where the register has not been removed, increases indicating the volume of gas that passed through the meter during the time the seal was broken; and

• (d) the meter is promptly resealed and restamped, relabelled, retagged or otherwise marked by an inspector or accredited meter verifier in accordance with the specifications made available by the director pursuant to section 18 of these Regulations.

(3) A meter that was originally sealed using a plastic filament of any diameter or a metallic filament with a diameter of less than 0.644 mm and that is discovered in service with a broken seal is exempt from the requirement of subsection 15(2) of the Act that it not be continued in use until it has been reverified if both of the following conditions are satisfied:

• (a) there is no visible sign that the broken seal resulted from an attempt to alter or affect the working parts or adjustments of the meter or in any other way affect the registration of the meter; and

• (b) the meter is resealed by an inspector in accordance with the Act and these Regulations.

4. (1) The director may delegate, in writing, his functions under any provision of the Act, other than subsection 11(1) or section 22.

(2) Prior to any delegation pursuant to subsection (1) notice of the delegation shall be published in the Canada Gazette.

5. (1) Where the amount of electricity supplied and the time-related demand for electricity supplied are the joint basis of a charge for electricity sold to a purchaser, the unit of measurement for the sale of such electricity shall be, with respect to the amount of electricity sold, a unit referred to in paragraph 3(1)(a) of the Act and, with respect to the time-related demand for electricity sold,

• (a) the watt;

• (b) the volt-ampere; or

• (c) the var.

(2) Where the unit of measurement for the sale of electricity is the volt-ampere or volt-ampere hour, vector addition shall be used to determine the total number of such units in a combination of polyphase circuits.