An energy or large telecommunications utility shall make all tariff changes applicable with service rendered on and after the effective date of the changes, unless the Commission by order provides otherwise. As used in this rule, "service rendered" means units of energy consumed, toll calls connected, basic service provided, or likewise as the context requires
Or. Admin. R. 860-022-0032
Stat. Auth.: ORS 183, 756, 757 & 759
Stats. Implemented: ORS 757.007, 757.220 & 759.190