Pakistan and the United States have signed a deal regulating the shipment of U.S. troop supplies to and from Afghanistan.
A top U.S. diplomat in Islamabad, Richard Hoagland, who signed the agreement on July 31, called it a "concrete, very positive step."
The agreement will not allow NATO to transport arms and ammunition through Pakistani territory, but military equipment for the Afghan National Army will be permitted.
U.S. Embassy spokesman Mark Stroh said the agreement will last to 2015.
In November 2011, Pakistan closed its border to supplies to U.S. and other NATO troops in Afghanistan in retaliation for U.S. air strikes that killed 24 Pakistani soldiers.
Pakistan reopened the route in early July after Washington apologized for the deaths.
Based on reporting by AP, tribune.com.pk, and RFE/RL's Radio Mashaal