Okla. Stat. tit. 2, § 2-15-142: Method of establishment

In any county in this state coming within the provisions of

Section 15-141 of this title, the board of county commissioners may,

by a resolution entered of record in the commissioners' journal of

proceedings, disclose its intention to avail such county of the

provisions and terms of Sections 15-141 through 15-147 of this

title, and within thirty (30) days after entry of the resolution of

record, the board of county commissioners shall meet for the purpose

of placing in force and effect the provisions of Sections 15-141

through 15-147 of this title.