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The postman might not even ring once anymore... 

epa03330123 United States Postal Service letter carrier Letonya Lawson makes her deliveries in Avondale Estates, Georgia USA, 31 July 2012. The U.S. P...
Letter carrier Letonya Lawson makes deliveries in Avondale Estates, Georgia, 31 July 2012. The U.S. Postal Service will no longer deliver to the door of new homes and will leave mail at the curb or in cluster boxes. The change might be expanded to all existing homes. ERIK S. LESSER

You've got mail -- but come and get it from the box yourself!

Under a cost-saving plan by the U.S. Postal Service, people moving into newly-built homes will not have mail delivered to their doors and will instead have to pick it up at the curb or neighborhood cluster boxes.

The Postal Service began the change in April, and Congress is considering an even bolder shift that would also affect existing houses. It's unclear if delivery to the door will eventually be eliminated entirely.

"Converting delivery away from door delivery to either curb line or centralized delivery would enable the Postal Service to provide service to more customers in less time," Postal Service spokeswoman Sue Brennan said Tuesday.

More than 30 million American homes get delivery to the door and another 50 million get mail dropped at curbside mailboxes.

But the Postal Service, which is buckling under massive financial losses, sees savings in centralized mail delivery. Door-to-door delivery costs the Postal Service about $353 per address each year.

Curbside delivery costs $224, and cluster boxes cost $160 per address. With cluster boxes, mailboxes for individual addresses are grouped together at a central neighborhood location.

The move is one of many cost-cutting steps the Postal Service is trying as it continues to plead with Congress for permission to overhaul its business and avert a bailout.

The agency also proposed eliminating Saturday mail delivery but was forced to back off that plan this year after lawmakers and some industries balked.

Representative Darrell Issa, a California Republican who has spearheaded Postal Service reforms, has introduced a bill that would completely do away with door delivery and require curbside or cluster boxes for existing residences with an exemption for people with disabilities.

The legislation was to be considered on Wednesday by the House Committee on Oversight & Government Reform.

A senior committee staffer said the legislation could realize annual savings of $4 billion from switching to curbside and $6 billion from cluster boxes.

Last year, the Postal Service lost $16 billion, mostly due to dwindling mail volumes and payments into a mandatory fund for its future retirees' healthcare.

The agency, which does not receive taxpayer funds, is under pressure to modify its business model and raise revenues or risk requiring a bailout of nearly $50 billion by 2017.

The Postal Service's efforts to require cluster boxes for new residences are being received with trepidation.

Cranberry Township, 25 miles north of Pittsburgh, recently received a letter from the local postmaster saying that all new homes would be serviced by cluster box units rather than door-to-door or curbside delivery.

Most new residential construction plans have already been approved and the change would require going back to the drawing board, said Ron Henshaw, the town's director for community development.

"Our board supervisors who actually run the township are very concerned about this," he said.

Since April, residential developers can no longer choose between curbside or cluster box delivery, agency spokeswoman Brennan said. The Postal Service makes that determination based on what it considers to be more effective.

The Postal Service has also been asking shopping malls and business parks to voluntarily convert to centralized delivery.

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