An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Transportation Options

NSA Bethesda is located across the street from the Medical Center Metro Station, which offers several options to commute to NSA Bethesda. There is a robust carpool program onboard the installation and a parking program that manages all parking at NSA Bethesda.


METRO (Washington Transit homepage)
MARC (Maryland Rail Commuter system)
VRE (Virginia Railway Express)

Public Buses

Maryland (MTA) Commuter Buses
Frederick County Transit Services

Fairfax City CUE
Fairfax Connector
OmniRide/PRTC (Prince William County/ DC Metro area)

Carpool Parking Permits
Designated parking for carpool permits can be found in Bldgs. 32 and 17. 

The distribution of carpool permits occurs multiple times throughout the year. Staff members are reminded to look out for all hands messages announcing the next distribution.

Bicycle Rack Locations

  • Building 147
  • Building 27
  • Building 17 (Handicap Parking and inside garage)
  • Building 62
  • America Garage
  • Building 54
  • Building 55
  • MUPS
  • Basement USU
  • NICoE
  • America Building
  • Building 5

Transportation Benefits

Mass Transit Fringe Benefits (MTFB) are available to Civilian & Active Duty Military staff. This is in addition to their current pay, up to $315 per month (subject to change), for their personal commuting costs using Mass Transit. MTFB can be applied to rail, bus and/or approved vanpools but not parking costs.

The web-based application provides enhancements such as email notifications regarding the status of their application (as steps are approved). The participant's supervisor must have .mil or .gov email address. Ensure all requested information is complete and accurate to guarantee timely approvals. There are applicant and supervisor guides posted on the application website for review. Processing time for applications is 30 days and must be recertified 45 days from the applicant's anniversary date.

The application for MTFB is found online. All DoD personnel that have a CAC card must use the web-based application at the following web link:

*Participants without a CAC card must continue to use the old DD Form 2845 (paper form).


Google Translation Disclaimer

  • Google Translate, a third party service provided by Google, performs all translations directly and dynamically.
  • Commandant, Naval District Washington, has no control over the features, functions, or performance of the Google Translate service.
  • The automated translations should not be considered exact and should be used only as an approximation of the original English language content.
  • This service is meant solely for the assistance of limited English-speaking users of the website.
  • Commandant, Naval District Washington, does not warrant the accuracy, reliability, or timeliness of any information translated.
  • Some items cannot be translated, including but not limited to image buttons, drop down menus, graphics, photos, or portable document formats (pdfs).
  • Commandant, Naval District Washington, does not directly endorse Google Translate or imply that it is the only language translation solution available to users.
  • All site visitors may choose to use similar tools for their translation needs. Any individuals or parties that use Commandant, Naval District Washington, content in translated form, whether by Google Translate or by any other translation services, do so at their own risk.
  • IE users: Please note that Google Translate may not render correctly when using Internet Explorer. Users are advised to use MS Edge, Safari, Chrome, or Firefox browser to take full advantage of the Google Translate feature.
  • The official text of content on this site is the English version found on this website. If any questions arise related to the accuracy of the information contained in translated text, refer to the English version on this website, it is the official version.

Naval District Washington   |   1411 Parsons Ave SE Suite 200   |   Washington DC, 20374-5001
Official U.S. Navy Website