Manufacturers of infant formula have had four years since the adoption of the new law to adjust their formulations. The old law and the new regulation have been in place during this transition phase, which ends on 22 February 2020. From then, infant formula intended for Switzerland and the EU can only be produced in line with the new regulation. The change will be gradual from the end consumer's perspective: it will still be possible to sell and use any formula manufactured up to 22 February 2020 till the expiry date.