Number of tiers

http://www.ceni-niger.org/lois_et_ordonnances/Loi_organique_2014-71.pdf

Hybrid system: 158 members are elected in 8 multi-member constituencies using the party-list proportional representation system, 8 from special single-member constituencies using the first-past-the-post system, and 5 single-member constituencies for Niger citizens living abroad (one per continent).