(A) Except as hereinafter provided in § 50.09, all charges for gas service, other than the minimum service charge, shall be calculated upon the registration of the meter or meters installed.
(B) If more than one meter is installed for different classes of service, each meter registration shall be considered by itself in calculating the amount of charges for service. When, for the convenience of the company, more than one meter is installed for the same class of service, the sum of the registration shall in all cases be considered as a single registration. Meters include all measuring instruments.
(2003 Code, § 13.04.080)