The Nebraska Certificate of Mailing is a document issued by the United States Postal Service (USPS) that serves as proof that mail items have been sent from Nebraska. It is used to provide legal evidence that a specific mailing was sent from a certain location on a specific date. The Nebraska Certificate of Mailing is available for domestic and international mail items. There are two types of Nebraska Certificate of Mailing: regular and certified. Regular Nebraska Certificate of Mailing is used to provide proof of mailing for first-class mail, periodicals, library mail, and standard mail. Certified Nebraska Certificate of Mailing is used to provide proof of mailing for first-class mail, periodicals, library mail, and standard mail, as well as for registered mail, certified mail, insured mail, and express mail. The Nebraska Certificate of Mailing is a valuable document for individuals and businesses who need to provide legal proof that mail items were sent from Nebraska. It is also a useful tool for tracking and verifying mail delivery.