The U.S. Postal Service is considering making crucial changes to its operations to save costs.

The service could close offices, reduce hour, consolidate processing centers and end Saturday delivery, CNN reports.

The USPS's financial condition and outlook continue to deteriorate with a worsening outlook for mail volume and revenue, the Government Accountability Office said in a statement on Thursday. Mail volume is expected to drop 13.7 percent compared to last year, the GAO said.

The service has made of list of post offices it is studying for possible closure, with most of these located in urban areas so affected customers would not have to look far for a replacement, Jordan Small of the Service told Congress yesterday, according to CNN.

Small said the closures would not affect mail delivery at homes or businesses.