Okla. Stat. tit. 4, § 399
The State Board of Health shall have the power to adopt such rules and regulations, not inconsistent with the laws of Oklahoma, as it may deem necessary to carry into effect the provisions of this act. The Commissioner of Health shall have the right whenever it deems advisable to inspect or investigate any institution to which it has granted a license or which has applied for a license.
Laws 1951, HB 241, p. 10, § 9.