US President Joe Biden said the government is gearing up to give the coronavirus vaccine to 12 to 15-year-olds.
All of the current vaccines are authorised for use in people over 16 in America.
The president also laid out plans to vaccinate 70% of American adults - a total of 160 million - by 4 July.
The target is well within reach given that 105 million have already had COVID-19 jabs and the US is vaccinating nearly a million adults per day.
However, the vaccination rate is half of what it was just three weeks ago.
Mr Biden had previously set the goal of life returning to normal by 4 July.
He said his administration would focus on getting the vaccine to more rural areas of the country, using smaller locations as mass vaccination sites were wound down.
"Now that we have the vaccine supply, we're focused on convincing even more Americans to show up and get the vaccine that is available to them," Mr Biden said during a White House press briefing.
"I want American parents to know that if that announcement comes, we are ready to move immediately," Mr Biden said, adding that 20,000 pharmacies across the country would serve as vaccination sites as soon as FDA approval came through.
To meet the president's broader target, the government will work to make the vaccine accessible by having thousands of pharmacies allow walk-in appointments.