The commissioner may, in his discretion, with the approval of the State board:
a. Require any board of education, having the necessary facilities to provide the services required to be provided by this chapter, to receive pupils requiring such services from other districts; or
b. Require any board of education not having the necessary facilities to provide the facilities and services required to be provided pursuant to N.J.S. 18A:46-15b and to receive pupils requiring such services from other districts.