Oregon Revised Statutes Utility Regulation § 774.130

(1) The Citizens' Utility Board shall not be required to pay any postage charges for materials submitted by the Citizens' Utility Board for inclusion in a utility billing if such materials weigh four-tenths of one ounce avoirdupois or less. If the materials submitted weigh over four-tenths of one ounce avoirdupois, then the Citizens' Utility Board shall reimburse the utility for a portion of the postage costs which is equal to that portion of the Citizens' Utility Board material over four-tenths of one ounce avoirdupois in proportion to the total weight of the billing. In addition to postage costs, the Citizens' Utility Board shall reimburse such other reasonable costs, as determined by the Public Utility Commission of Oregon, incurred by a utility in complying with ORS 774.120.

(2) Reimbursement of a utility by the Citizens' Utility Board shall be made within 60 days of the date the utility submits to the Citizens' Utility Board an itemized statement of the costs incurred by the utility. In no event shall such reimbursement exceed the fair market value for the services provided by the utility.