In 1988 Congress established the Independent Commission on Base Realig
nment and Closure and gave it nearly complete authority to determine w
hich domestic military bases would be closed. I analyze both the struc
ture of the base-closing process and the procedural requirements impos
ed on the commission, and find that two factors explain the extensive
delegation of power (which was unusual). First, legislators reduced th
e costs of any potential adverse commission activity by insisting that
the process be nonarbitrary and by restricting the commission's autho
rity to a narrow jurisdiction. Second, legislators lowered the risk of
political retribution by insulating themselves from the commission's
actions, providing a mechanism that allowed them to demonstrate concer
n for affected constituents and insuring that the public would accept
the commission's decision as legitimate.