A person qualifies as a teacher for the purposes of the GNND Sales Program if the person is:

(a) Employed as a full-time teacher by a state-accredited public school or private school that provides direct services to students in grades pre-kindergarten through 12; and

(b) The full-time employment in paragraph (a) of this section must, in the normal course of business, serve students from the locality where the home is located.