Although Uzbekistan has been getting the most attention among coalition countries in Afghanistan looking for land routes to ship their equipment back home, Tajikistan also is encouraging western countries to do the same, and the United States and United Kingdom seem to be among the interested parties.
Assistant Secretary of State for South and Central Asia Robert Blake visited Dushanbe last week and met with President Emomali Rahmon. After the meeting, Blake was asked if the U.S.'s withdrawal from Afghanistan would take place through Tajikistan. His response:
[A]s you all know, the President of the United States announced during his State of the Union speech that the United States would be halving the number of troops in Afghanistan by February of next year, but I don’t expect that that operation will take place through Tajikistan.
That appeared to be a shift in policy: the U.S. has been using the Kazakhstan-Kyrgyzstan-Tajikistan (KKT) route as a complement to the more heavily used Uzbekistan route to ship equipment to Afghanistan. And some media reported it as such: Asia-Plus headlined its article "Washington does not plan to use Tajikistan’s infrastructure for Afghan withdrawal," while Nezavisimaya Gazeta wrote that his comments showed that "the U.S. doesn't consider Tajikistan to be a transit country."
A State Department spokesperson said Blake was only referring to troops, not to equipment, and referred The Bug Pit to the Pentagon for clarification of Tajikistan's status as a transit country. Commander Bill Speaks of the Office of the Secretary of Defense confirmed that "Yes, Tajikistan will be used as part of the NDN routes for retrograde of equipment." So that's cleared up.