Route nationale 3b (Madagascar)

Route nationale 3b (RN 3b) is a secondary highway in Madagascar of 106 km, running from Sambava to Andapa. It crosses the region of Sava.

Selected locations on route
(west to east)
 * Andapa
 * Tanambo
 * Ambatobarika
 * Sambava (intersection with RN 5a to Ambilobe and Antalaha)