Okla. Admin. Code § 310:355-11-4
If a space used at one time as a smoking room or other smoking space is to be used as a smoke-free area at a subsequent time, the space must first be cleared of smoke components.
Added at 23 Ok Reg 2363, eff 6-25-06
Amended at 39 Ok Reg 1328, eff 9-11-22