The Pakistani parliament has unanimously approved new guidelines that could pave the way for the re-opening of supply lines to NATO troops in Afghanistan.
The government in Islamabad blocked the supply routes last November after US air strikes inadvertently killed 24 Pakistani soldiers on the Afghan border.
About 30% of supplies used by NATO and US forces are transported through Pakistan.
The recommendations drawn up by a national security committee also include a call for an end to drone attacks in Pakistani territory and an unconditional apology for the deadly US air strikes in November.
Western officials were keen for Islamabad to commit to reopening NATO supply lines before a summit in Chicago next month.
The guidelines were silent on the resumption of NATO convoys but said Pakistani territory must not be used for the transport of arms and ammunition to Afghanistan - a demand of several political parties including opposition Islamists.
Pakistan was incensed by the US refusal to apologise for the 26 November killings and aside from shutting its border, it ordered US personnel to leave a base reportedly used in America's drone war against al-Qaeda and the Taliban.
The guidelines, backed by parliament after weeks of debate by the committee, demand that those responsible for the air strikes be brought to justice.
Prime Minister Yousuf Raza Gilani told parliament his government would implement the recommendations in "letter and spirit".
"Our partnership cannot be at the cost of our sovereignty or territorial integrity," he said.
"We want to proactively engage with our international partners. Our resolve to combat extremism and terrorism remains unshakeable."
Drone strikes are resented in Pakistan as violations of sovereignty, despite the fact that they have at times worked in Islamabad's favour, such as killing Pakistani Taliban founder Baitullah Mehsud in August 2009.
