Section 6. Coverage. — The grant of any scholarship award from the Fund shall be applied only in the field of science, mathematics, engineering, and such other areas in the undergraduate or postgraduate courses as may be provided for in the rules and regulations to be promulgated by the DOST and the Department of Education, Culture and Sports (DECS): Provided, however, That the scholarship grant for the postgraduate level shall not be limited to those scholars or recipients who are graduates of the undergraduate scholarship program.