Tenure of seat of members (National Assembly)
Section 68(1)(g) · 1999 Constitution (2004 edition)
What Constitution says
(g) being a person whose election to the House was sponsored by a political party, he becomes a member of another political party before the expiration of the period for which that House was elected; Provided that his membership of the latter political party is not as a result of a division in the political party of which he was previously a member or of a merger of two or more political parties or factions by one of which he was previously sponsored; or
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 49–50. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections