(AP) – A new law gives active military personnel and veterans access to free day passes to Maine state parks and historic sites.On Tuesday, Gov. John Baldacci will mark enactment of the bill with a ceremonial signing. The bill authorizes the state to issue free day passes to Maine residents who are active military personnel or veterans. Their children and spouses must still pay to get into the parks.The new law, which resulted from a pair of bills passed during this year’s legislative session, is in effect in time for the summer season. The passes have no expiration date.