The Metropolitan Washington Airports Authority, an interstate agency slated to take over the $4 billion extension of Metrorail to Dulles, says it is completely exempt from federal and state information disclosure laws.

The group, which oversees Dulles International and Reagan National Airports, claims its status as an “interstate compact” similar to Metro puts it outside the scope of the Freedom of Information Act, a law used by media and others to leverage records from public agencies. MWAA instead follows an internal policy in receiving and responding to requests for information, said spokeswoman Tara Hamilton.