Okla. Stat. tit. 11, § 56-103
The Municipal Campaign Finance and Financial Disclosure Act shall apply only to municipalities with a population of more than ten thousand (10,000) according to the most recent Federal Decennial Census and a general fund expenditure budget in excess of Ten Million Dollars ($10,000,000.00) in the fiscal year in which the municipal elections are held.
Laws 2014, SB 1745, c. 313, § 13, eff. January 1, 2015.