“We are preparing to issue a vaccination certificate for those who need it … when they visit foreign countries,” government spokesman Katsunobu Kato told reporters.
The certificate will be on paper rather than digital and will be issued by local governments starting next month, he said.
The European Union is working on a digital vaccine passport for this summer, so that it can receive the tourists most in need, and some EU countries plan to introduce certificates at the national level.
The EU version will include information on whether a person has been vaccinated or the virus tested negative and recovered.
Last month, Washington said it was also considering special documentation for vaccinated Americans who want to travel abroad.
But the idea is controversial in some places, with conservative US states like Florida and Texas reject the idea of vaccine travel documents as a violation of people’s basic rights.
In Japan, company officials have been interested in a vaccine document that would help reestablish business travel.
The launch of the vaccine in Japan started relatively slow, but has accelerated in recent weeks. Currently, just over six percent of the population is fully vaccinated.
The country’s borders are closed to almost all foreign arrivals, although the rules will be relaxed for the Olympics, which open in Tokyo July 23.