The president is elected by popular vote for a five-year term and is responsible for the administration of the government, overseeing the implementation of national policies, and representing Zambia in international affairs.
The president's role includes appointing the Cabinet, serving as Commander-in-Chief of the Zambian Defence Force, and ensuring the enforcement of laws.
Since 31 August 1991 the president is also the head of government, as the position of Prime Minister was abolished in the last months of Kaunda's presidential term following negotiations with opposition parties.
After negotiations with the Movement for Multi-Party Democracy (MMD) in 1990, President Kaunda signed a constitutional amendment legalising political parties other than UNIP.
[11] Later in the year, Chiluba amended the constitution stating that only people who had one parent born in Zambia or Northern Rhodesia could run for president.
[12] This amendment was ostensibly targeted at blocking Kaunda from standing for president again as his parents had been born in Nyasaland (modern day Malawi).
[15] Following legal disputes, the Supreme Court eventually ruled in 2005 that though the poll was "flawed", there were not enough errors to justify overturning the result.
This made Scott the first white head of state of an African country since South Africa's F. W. de Klerk who left office in 1994 following the end of apartheid.
There are four most notable changes affecting the presidency in this amendment assented to by Edgar Lungu in January 2016, most of which are found in Part VII(7) of the constitution [1].
Lastly, the fourth change was in Article 100 Section 1 j) which requires an aspiring presidential candidates to prove to have at least 100 registered voters in each of the ten provinces to successfully file for nominations with the Electoral Commission of Zambia.