All post offices will be open New Year's Eve, Tuesday but most will close at noon except the following, open until 5 p.m.: Fredonia Post Office, 21 Day St.; Jamestown Post Office, 300 East Third St.; Olean Post Office, 102 S. Union St.; and the Wellsville Post Office, 40 E. Pearl St. Regular mail delivery for Tuesday will be unaffected by the change. Mail deposited in collection boxes will be retrieved by the last established collection time or by noon, whatever is earlier. All Post Offices will be closed Wednesday, and only Express Mail will be delivered. Regular mail delivery and Post Office hours will resume Thursday. Revised hours will be posted at each post office. For more information, call 800-ASK-USPS.