Kyrgyzstan's interim government says it will hold elections later this year following a constitutional referendum on reducing presidential powers.
The central Asian state also said it was unlikely to make a final decision on allowing the US to retain its lease of a key air base until after the October 10th election.
"This question is unlikely to be considered before the elections," Omurbek Tekebayev, a deputy prime minister in charge of constitutional reform, said.
"The provisional government considers that such important questions must be looked at by a legal government, that is to say by the new government which will be formed after the parliamentary elections," he said.
The new administration took power in the ex-Soviet state following an uprising on April 7th during which President Kurmanbek Bakiyev was ousted. Mr Bakiyev, who is in exile in Belarus, says he remains the president and has called on world leaders to boycott the new government.
The interim government, made up of Bakiyev opponents, plans to sharply reduce the power of the presidency with constitutional changes that will be voted on in a referendum planned for June 27th, Mr Tekebayev said.
"We want to create a parliamentary republican form of governance and are looking at mechanisms to really support a parliamentary opposition," he said.
"The president is the commander-in-chief and the head of state but full executive power including foreign affairs will be with the prime minister and parliament," he said.
The interim government has sent mixed signals about the fate of the US base which supports operations in Afghanistan. The US has cut back troop flights through the base due to the unrest.
Mr Tekebayev said there were different opinions within the government about the US base lease, which interim government chief Roza Otunbayeva has said will be kept in place. She has also said there are some outstanding questions about the base.
Both Russia and the United States, which are vying for influence in Kyrgyzstan, have held talks with the interim government, and both have called for new elections.
The new rulers have been struggling to stamp their authority after Mr Bakiyev fled the country last week. Elections could consolidate their position, but they could also prolong instability as rival clans and ethnic groups vie for influence.
Five people died on Monday and Tuesday in attacks on ethnic Russians and Meskhetian Turks by looters trying to exploit the post-revolt turbulence to seize land.
Mr Bakiyev's allies last week briefly seized a regional government building in the south of the country, where there is a large minority of ethnic Uzbeks.
Reuters