A copy of the newspaper advertisement of the application for a permit, significant revision of a permit, or renewal of a permit, or proof of publication of the advertisements which is acceptable to the Department shall be filed with the Department and shall be made a part of the application not later that 4 weeks after the last date of publication as required by Section 460:20-15-5(a) (1) of this Chapter.
Okla. Admin. Code § 460:20-23-9