The United States Postal Service filed notice Thursday with the Postal Regulatory Commission of a price increase for Mailing Services products based upon the Consumer Price Index cap authority. The filing, if approved, would keep Forever Stamps at their current price of 49 cents.

The First-Class Mail prices for these products are:

* Letters (1 oz.) – Current 49 cents, proposed 49 cents

* Letters additional ounces – Current 21 cents, proposed 22 cents

* Letters to all international destinations – Current $1.15, proposed $1.20

* Postcards – Current 34 cents, proposed 35 cents

The action is the latest in a series of steps the Postal Service has taken as part of a comprehensive approach to achieve financial stability. By growing volume, revenue and contribution, the Postal Service will continue to meet America’s mailing and shipping needs well into the future. While improving efficiency in streamlining its network and seeking legislative changes, the Postal Service must address an outdated business model.

Some of the key elements of the proposal include the following:

* Maintains single-piece stamp prices at 49 cents

* Addresses PRC concerns about underwater products

* Simplifies Special Services to reduce redundancy and improve customer ease of use

The filing does not affect Postal Service Shipping products and services and are proposed to become effective on April 26, 2015.

The PRC will review the prices before they are proposed to become effective on April 26, 2015, to determine if prices are consistent with applicable law.

The Postal Service receives no tax dollars for operating expenses and relies on the sale of postage, products and services to fund its operations.