OAR 860-021-0125
OAR 860-021-0125. Due and Payable Period
(1) Each energy or large telecommunications utility shall establish procedures to ensure that the period from the billing transmittal for all current charges, including payment for final bills, to the due date is not less than 15 days.
(2) If the bill is delivered by US mail, the due and payable period begins the day after the US Postal Service postmark or the day after the date of postage metering.