The US Department of State stated on January 14, 2021, 'All of our agencies and centers are processing passport applications. You can now apply for routine service and expect to receive a passport in 10-12 weeks. You also have the option of paying an additional $60 for expedited service to receive your passport in 4-6 weeks.'
'Because of increases in COVID-19 cases and changing local health conditions, agencies, and centers are offering minimal in-person services if you need to travel internationally in the next 72 hours.'
'If you applied for routine service more than 12 weeks ago and have not received your passport yet, we may also have sent you a letter requesting additional information to continue processing your application.'
The State Department published an updated FAQ on this webpage.