The Bali bombers can be shot dead at any time after Indonesia's Supreme Court said an eleventh-hour appeal would not delay their executions.
Amrozi, Ali Ghufron (also known as Mukhlas) and Imam Samudra, are to be shot by firing squad for their role in the Bali bomb attacks, which killed more than 200 people including three New Zealanders and 88 Australians on 12 October 2002.
The bombers have never expressed any remorse for Western victims of the attacks, but have previously expressed regret for the 68 Indonesians who died.
They could be marched into the forest and shot by firing squads as soon as Tuesday, despite lawyers' attempts to win a reprieve.
The bombers had exhausted all their legal options and the latest appeal "will not change or delay the execution," Supreme Court judge Djoko Sarwoko said.
On Monday, the Denpasar District Court received yet another appeal from the bombers' lawyers and sent it to the Supreme Court for a decision.
It was always going to be a long shot. The Attorney General's Office has repeatedly said all avenues for appeal were exhausted long ago.
Execution sites have been prepared on Nusakambangan Island, where the bombers' prison is located, local chief prosecutor Muhammad Yamin said. The convicted terrorists would be "executed simultaneously" but at different locations.
Security forces are on high alert amid fears of revenge attacks once the bombers are executed.
The families of the bombers have been denied access to visit them in Nusakambangan prison.