The National Transportation Safety Board (NTSB) released the site of the Ft. Totten accident back to the Washington Metropolitan Area Transit Authority (WMATA). The site, located on the Red Line between Ft. Totten and Takoma stations in Washington, D.C., was the scene of the fatal collision of two WMATA trains on June 22, 2009.

The NTSB's Signal and Train Control Group completed its examination and testing of train control equipment at the scene of the accident, and the accident site, including the track, has been released back to WMATA.

As part of the ongoing investigation, the NTSB is continuing to examine components from the train control system in WMATA's laboratory facility in Landover, Md., and at WMATA's Operations Control Center.