Section 2(19) in The Goa, Daman and Diu Secondary and Higher Secondary Education Rules, 1975
(19)Where the Board has sanctioned a text-book for a specified period, it shall be competent for the Board to extend the period of sanction, from time to time, but not beyond the total period of more than three academic years, after broad scrutiny by the Board of studies or without any fresh review or scrutiny as it deems fit.
