Okla. Stat. tit. 43A, § 43A-6-203: Supplemental agreements

The compact administrator is hereby authorized and empowered to

enter into supplementary agreements with appropriate officials of

other states pursuant to Articles VII and XI of the compact. In the

event that such supplementary agreements shall require or

contemplate the use of any institution or facility of this state or

require or contemplate the provision of any service by this state,

no such agreement shall have force or effect until approved by the

head of the department or agency under whose jurisdiction said

institution or facility is operated or whose department or agency

will be charged with the rendering of such service.