In this paper we will show that any number normal with respect to the regul
ar continued fraction (RCF) is also normal with respect to the continued fr
action from below (BCF) and the nearest integer continued fraction (NICF).
Furthermore, we will show that in case of the NICF a number is normal with
respect to the RCF-expansion if and only if it is NICF-normal. This can be
generalized to a larger class of semi-regular continued fraction expansions
.