The Farm to Fork Strategy, aims at reducing dependency from chemical plant protection products, also by facilitating the placing on the market of biological substances, including microorganisms. To support this objective, this Regulation aims at improving the suitability of the legal framework by adapting the existing data requirements in Part B of the Annex to Regulation (EU) No 283/2013 to the characteristics of the microorganisms, which are different from those of chemical active substances.