Effective Jan. 27, new prices will go into effect for some USPS products and services.

The new prices for First-Class Mail and service pricing include:

• First-Class Mail, one ounce: 46 cents
• First-Class Mail postcard: 33 cents
• Stamped postcards: 37 cents
• Electronic Return Receipt: $1.25.
• Certificate of mailing: $1.20

New domestic retail pricing for Priority Mail Flat Rate products:

• Small box: $5.80
• Medium box: $12.35
• Large box: $16.85
• Large APO/FPO box: $14.85
• Regular envelope: $5.60
• Legal envelope: $5.75
• Padded envelope: $5.95

Other changes include a new offering — a First-Class Mail Global Forever stamp that will allow customers to mail letters up to two ounces to Canada and up to one ounce anywhere else in the world for a set price of $1.10.

Customers can obtain lower prices for Priority Mail and other types of expedited products when purchasing them online.

A complete list of new prices with additional information is available here.