Section 3. Section 31 of the same Act is hereby amended to read as follows:

"SEC. 31. Transitory Provision. — Special permits, with a validity of three (3) and five (5) years, issued to para-teachers by the Board for Professional Teachers before the effectivity of this Act shall be allowed to expire based on the period granted therein: Provided, That only special permits with a validity of three (3) years may be renewed upon expiration for a non-extendible period of two (2) years."