The Metropolitan Washington Airports Authority is poised to ban all D.C. taxicabs from picking up passengers at Washington-Dulles International Airport, cutting ties with a well-established Washington company and costing the District more than $1 million in tax revenue.

The authority’s 13-member board of directors, including incoming chairman H.R. Crawford, of D.C., is expected to hand three companies, two from Virginia and one from Baltimore, exclusive access to the lucrative fares leaving the Northern Virginia airport. Left out is District Cab, which has operated out of Dulles since 2000.