La. Public Health and Safety § 40:612
Whenever the department finds, after investigation, that the distribution of any class of food may, by reason of contamination with microorganism during the manufacture, processing, or packing thereof, is injurious to health, and such injurious nature cannot be adequately determined after the articles have entered state commerce, it may then, and in that case only, promulgate regulations, governing the conditions of manufacture, processing, or packing for such temporary periods of time as may be necessary to protect the public health. Thereafter, no manufacturer, processor, or packer of that class of articles shall introduce into state commerce any such food unless he holds an unsuspended, valid permit issued by the department as provided by the regulations.
La. Public Health and Safety § 40:612