Italy is to make it compulsory for all workers to have proof of COVID vaccination, a negative test or recovery from the virus.
The measures are a first for Europe and some of the strictest in the world.
Anyone without a pass will reportedly face suspension from work and may have their pay stopped after five days.
The measure, due to come into force on October 15, aims to boost vaccinations in a country that has been badly hit by the virus.
Green pass certificates for COVID-19, provided both digitally and on paper, are already required to access Italian train stations, cinemas, restaurants, gyms and swimming pools.
School staff are also required to show a pass and some teachers have reportedly been turned away from work.