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The edges of a box are more likely to deviate from the central 3-deep run order. \nDPSC_Label is no longer being maintained.\n\nMost recent changes listed first: Fire station 41 split (2/2020), Shopping malls(12/2019/, Rt 28 between Dulles and Fairfax, Arlington, Fort Belvoir, Box 6400, GOMAPS, Loudoun, Prince William. Pending changes for new fire station 444.\n\nFeb 2020 total: 3300 (of which 3,171 are valid boxes). August 2019 total: 3298 records. Jan2019 total: 3166 records. Jan 2018: total of 2546 records.\n\nNon-valid boxes are used to identify elevated roads that do not technically intersect. For instance, two interstates do not intersect but thier associated ramps do intersect. 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