Why it matters: The federal government will probably neither mandate nor encourage digital immunity passports or other proofs of vaccination. But privately-operated digital certificates are already being developed — and U.S. law means that anybody who gets vaccinated here should be able to obtain the proof they need.

The big picture: Your employer has a clear interest in knowing whether you’ve been vaccinated, as do the immigration staff in any foreign country you want to visit. Many workers, from nursing-home aides to opera singers, have a clear desire and even need to be vaccinated before doing their jobs. Which means they’ll need some kind of proof of vaccination.

What they’re saying: “Those who get vaccinated deserve more freedom,” wrote the FT’s John Gapper last month. Private companies “should be allowed, even encouraged, to protect customers and employees from harm.”