Okla. Admin. Code § 35:37-11-118
Labels shall be used only on products for which they are approved, and only if they have been approved for the products: Provided, that existing stocks of labels approved prior to the effective date of this Section and the quantity of which has been identified to the inspector in charge as being in storage on said date at the official establishment or other identified warehouse for the account of the operator of the official establishment may be used until the stocks are exhausted, but not later than one year after the effective date of this Section unless the labels conform to all the requirements of this Part. The Director may upon the show of good cause grant individual extensions of times as deemed necessary.
Okla. Admin. Code § 35:37-11-118