Via press release from the TSA:
Whether beginning the security screening process at the airport Travel Document Checker (TDC) or submitting checked baggage for screening, all passengers who appear to be over the age of 2 must properly wear a face mask throughout the security screening process.
The officer at the TDC will request that travelers temporarily lower the mask to verify their identity. Those who approach the TDC without a mask will be asked to wear or obtain one to proceed.
Passengers who refuse to wear a mask will not be permitted to enter the secure area of the airport, which includes the terminal and gate area.
Depending on the circumstance, those who refuse to wear a mask may be subject to a civil penalty for attempting to circumvent screening requirements, interfering with screening personnel, or a combination of those offenses.
The amount of the fine isn’t mentioned.
TSA authorized to fine passengers who refuse to wear maskshttps://t.co/EbQQFxxwVQ
— AlexGangitano (@AlexGangitano) February 1, 2021