Under regulations prescribed by the Secretary, no tax shall be imposed under section
4251 on any amount paid by a nonprofit educational organization for services or facilities furnished to such organization. For purposes of this subsection, the term “nonprofit educational organization” means an educational organization described in section
170
(b)(1)(A)(ii) which is exempt from income tax under section
501
(a). The term also includes a school operated as an activity of an organization described in section
501
(c)(3) which is exempt from income tax under section
501
(a), if such school normally maintains a regular faculty and curriculum and normally has a regularly enrolled body of pupils or students in attendance at the place where its educational activities are regularly carried on.