Division Title

​COVID Assessment & Testing

COVID-19 Testing

The NIH has two in-house mechanisms for providing COVID-19 testing; for-cause and asymptomatic testing. For-cause testing is used for personnel that are experiencing COVID-19 symptoms or have recently tested positive for COVID-19. Asymptomatic testing is for personnel with no symptoms, and may include personnel that were exposed to COVID-19 positive cases, unvaccinated personnel with a medical or religious exemption, and personnel who are voluntarily submitting to routine testing.

For-Cause Testing

Personnel that report COVID-19 symptoms will be asked to have a COVID-19 PCR-based test. This may be performed in the community (at the employee’s expense) or at the NIH “Car-Line” testing facility. This facility is staffed by NIH personnel, including nurses, safety professionals, and emergency responders.

Regardless of vaccination or exposure status, any symptomatic personnel must not report to work and should test at the earliest For-Cause testing opportunity. Symptomatic personnel must report their change in health status to their case manager to confirm you received a PCR- base test during the appropriate timeframe. Personnel without an assigned case manager should complete the OMS COVID Screening Questionnaire.

Asymptomatic Testing

Given the change in CDC guidance, increased immunity from vaccination and natural infection, and wide availability of COVID-19 diagnostic tests in the community, NIH will be moving away from providing testing services to the general NIH population. Effective November 1, 2022, NIH will only be offering testing services to staff members with direct patient contact or referred by Occupational Medical Service (OMS) based on job duties required to keep the workplace safe. Additionally, testing will be available by appointment only; walk ins will no longer be available. Eligible staff with no known COVID-19 exposure or symptoms can make an appointment for asymptomatic testing via the NIH Clinical Center scheduling site. Eligible staff with a COVID-19 exposure or symptomatic should remain at home and contact OMS for instructions.

Asymptomatic Testing Locations

Testing Site

Testing Site Building and Room

Testing Hour Locations

Bethesda, Maryland

(Main Campus)


Schedule varies due to demand, please check the Clinical Center Scheduling System website

Montgomery County,

Maryland (Off-campus)

Shady Grove Gym, 9609

Medical Center Drive

Wednesday 9:00AM to 11:00AM EST

Baltimore, Maryland



BRC Atrium

Operation currently suspended.

Frederick, Maryland (NCI-Frederick and IRF)

Building 426 Asymptomatic Testing


Wednesday 12:30PM to 2:00PM EST
Research Triangle Park, North Carolina (NIEHS)Building 101 Parking Lot Asymptomatic Testing Site

Monday 7:30AM to 12:00PM EST

Tuesday 12:00PM to 5:00PM EST

Wednesday 12:00PM to 5:00PM EST

Thursday 7:30AM to 12:00PM EST

Hamilton, Montana

(RML Campus)

Building 11Operation currently suspended.

Phoenix, Arizona

(NIDDK Phoenix)

Building 1/Room 401Monday 7:00AM to 12:30 MST