The digital entry declaration has replaced the opt-out card, and the compulsory quarantine has been shortened from 14 to 10 days. As before, there are exceptions to the compulsory quarantine for job-related entries, for example, for workers who have spent fewer than 72 hours in a foreign risk area to carry out essential and non-postponable business travel.
Please note: This is only a preliminary information. Inform yourself here: https://www.hessen.de/sites/default/files/media/1vo_corona_stand_08.11.pdf