First instance body dealing with electoral disputes

Electoral Act 2006, 21(3)

Any question, by anyperson, which may arise as to whether any provision of the Constitution or anylaw relating to nomination or election of President has been complied withshall be referred, by such person to the full bench of the Supreme Court withinfourteen days of the person elected as President being sworn in, in accordancewith clause 9 of Article 34 of the Constitution.

http://aceproject.org/regions-en/eisa/ZM/Electoral%20%20Act%202006.pdf

EU2011 EOM Report, pg 12

There have been no formal complaints from political parties on candidateregistration, however, with the short time window, challenges in the case oferrors or against any rejected nominations were without remedy short of anelection petition after the poll.

http://www.eueom.eu/files/pressreleases/english/eueom_zambia_final_report_en.pdf