Okla. Stat. tit. 25, § 158
All state agencies and political subdivisions shall only purchase flags of the United States and state flags of Oklahoma that are manufactured in the United States. A flag is manufactured in the United States if a substantial majority of the principal components are assembled into the final product in an assembly plant in the United States.
Laws 2008, HB 2969, c. 45, § 1, eff. November 1, 2008.