The proposed changes by the U.S. Postal Service will not go into affect until 2025, so election mail will not be impacted. The U.S. Postal Service wants to save $3 billion annually on changes that reflect its greater reliance on streamlined regional networks — while retaining local mail delivery times of one to three days and allowing customers to track some delivery schedules with greater precision.Election mail won’t be affected, officials said.The proposal, announced Thursday, would adjust mail delivery times while maintaining a commitment to a maximum five-day delivery for the flagship Ground Advantage program nationwide and a maximum three-day delivery for local first-class mail.Postmaster General Louis DeJoy said the changes to take place next year are necessary to “enable us to operate more efficiently and reliably, grow our business and give us a chance for a viable future” after an 80% drop in first-class mail since 1997 and a corresponding growth in packages.