USPS Priority Mail Regional Rate Boxes for short-distance
You need to use the special regional rate box to use this rate, which can be ordered free online:
order Priority Mail Regional Rate Boxes
This is what ebay says about this:
Save big on short-distance shipping
Starting in March, when you ship short-distances, you can use the new USPS Priority Mail® Regional RateTM boxes - available online only - for shipments of up to 15 lbs and shipments of up to 20 lbs. Choose this new option when your buyer is close to home.
For example, if you ship a 10 lb package from San Jose to Sacramento, look at the savings:
Priority Mail® costs $9.80
Priority Mail® Medium Flat Rate Box costs $10.50
Priority Mail® Regional Rate Box A costs only $4.97
Look for the USPS Regional Rate box option when you print labels on eBay. Remember - you've got to use the box to get these fantastic rates!"
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