Washington(CNN) The Biden administration is working on creating a set of standards for people to prove they've been vaccinated against Covid-19, according to an administration official.
The official said they're currently working with a range of companies on the standards, including non-profits and tech companies, adding that they are likely still weeks away from being finalized, the official said.
Multiple government agencies are engaged in conversations and planning, coordinated by the White House, as this kind of system will play a role in multiple aspects of life, including potentially the workforce, another senior administration official told CNN.
White House press secretary Jen Psaki said Monday there will be no federal mandate requiring every American to obtain a vaccination credential and there will be no centralized universal federal vaccinations database.
She also said the White House expects the private sector to drive "a determination or development of a vaccine passport, or whatever you want to call it."
President Joe Biden has predicted that life in the US could be back to normal by Christmas, and as more Americans are vaccinated each day, these vaccine credentials -- commonly called "vaccine passports" -- could be key to a return to normalcy by the end of the year.
Some sectors, meanwhile, like the travel industry, have clamored for a uniform system to be developed as they seek a return to normalcy. Governments around the world may seek proof of vaccinations before foreigners can enter their borders again.
The administration's plans were first reported by The Washington Post.
The Biden administration previously said the federal government should not be involved in efforts to create a vaccine passport system to verify that people have been vaccinated.
The Post, citing five officials who spoke on the condition of anonymity, reported the effort "has been driven largely by arms of the Department of Health and Human Services, including an office devoted to health information technology."
White House coronavirus coordinator Zients has led the White House's role in coordinating the project, an official told the Post.
"Our role is to help ensure that any solutions in this area should be simple, free, open source, accessible to people both digitally and on paper, and designed from the start to protect people's privacy," Zients said earlier this month, according to the newspaper.
The administration official told CNN Monday the standards are still in the early stages of development but expects them to look similar to what Zients outlined -- that the ultimate product should be free, private and safe from being duplicated or forged.
CNN previously reported that several companies and technology groups have begun developing smartphone apps or systems for individuals to upload details of their Covid-19 tests and vaccinations, creating digital credentials that could be shown in order to enter concert venues, stadiums, movie theaters, offices, or even countries.
But part of ensuring wide usage for vaccine passports is accounting for the large subset of the global population that still doesn't use or have access to smartphones. A few companies within the Covid-19 Credentials Initiative are also developing a smart card that strikes a middle ground between the traditional paper vaccine certificates and an online version that's easier to store and reproduce.
This story has been updated with additional information on the government's involvement in coordinating vaccine credentialing standards.