The request could allow the vaccine – a two-dose series – to be approved by the agency in the coming weeks.
Pfizer and BioNTech's vaccine has already been granted emergency use authorization in children between the ages of 5 and 11.
PFIZER, BIONTECH BEGIN OMICRON-SPECIFIC COVID-19 VACCINE STUDY
In addition, children as young as 5 years old who are immunocompromised are also eligible for extra shots.
The Washington Post first reported the move.
On Sunday, former FDA commissioner and Pfizer board member Scott Gottlieb told CBS News that the vaccine might be authorized for the youngest age group as soon as March.