Okla. Admin. Code § 165:70-9-3
A utility may not file a notice of intent to increase rates using the streamlined general rate filing procedures more than once in a twelve (12) month period. A utility may not file more than two (2) consecutive annual filings utilizing the provisions of this Subchapter, nor may a utility file more than three (3) filings within the most recent five (5) year period utilizing the procedures set forth in this Subchapter.
Added at 15 Ok Reg 3143, eff 7-15-98