Darien Library and the U.S. Post Office: Passport Day. Program Room, Lower Level, 35 Leroy Ave. Photo service available for $15. Passport fees: For persons age 16 and over, $75, plus $25 execution fee; for those under 16, $60, plus $25 execution fee. Optional expedited service: $60. Evidence of U.S. citizenship or nationality and a birth certificate required. Children under 16 must be accompanied by both parents. For more information, contact Peggy Andral at the Darien Post Office at 655-2595.