It is unclear if Guy Scott will be able to run for president because he is not a third generation Zambian. Zambian Vice-President Guy Scott has been named acting leader following the death of President Michael Sata.
Presidential elections to choose a permanent successor will be held within 90 days, Defence Minister Edgar Lungu said.
Mr Scott, who is of Scottish descent, becomes Africa�s first white head of state for many years. Mr Sata died in the UK aged 77 after receiving treatment for an undisclosed illness.
He was being treated at London�s King Edward VII hospital where he died on Tuesday night.
�Beloved comrade�
Mr Scott regularly stood in for the president at official events, but was never appointed acting president when Mr Sata was abroad � so this is his first time to officially lead the country.