The French Bread Law of 1993 outlines specific rules for the sale of bread in France. Specifically, baguettes can not be frozen before sale and must be made fresh with no additives. It also specifies a maximum pH level and bacteria counts for the sourdough starters. – WTF Fun Facts
Source: https://www.legifrance.gouv.fr/loda/article_lc/LEGIARTI000006933918/2020-01-03/