The State Board of Health shall enforce the provisions of this chapter, and may approve and register such brands and labels, intended for use under the provisions of this chapter as may be submitted to it for that purpose and as may in its judgment conform to the requirements of this chapter. However, in any prosecution under this chapter the fact that any brand or label involved in such prosecution has not been submitted to such State Board of Health for approval, or if submitted, has not been approved by it, shall be immaterial. (Amended 1959, No. 329 (Adj. Sess.), § 27, eff. March 1, 1961.)