Nine people were killed in the 2009 Red Line crash.
Metro is getting closer to fulfilling all the safety recommendations that were issued after a Red Line crash killed nine people in 2009.
The transit authority says the National Transportation Safety Board has closed seven more safety recommendations bringing the total to 20 that have been completed since 2009.
Metro says of the nine remaining recommendations, four have been submitted to NTSB for closure. The remaining five involve longer-term projects, including the replacement of the oldest rail cars in the Metro system. That's scheduled to begin late next year when the first of the new 7000 series rail cars begin carrying passengers.
Among the recommendations just closed by the NTSB, one that requires Metro departments to coordinate maintenance efforts to resolve issues before new equipment is purchased.