According to the Older Worker’s Benefit Protection Act (OWBPA), individuals are prohibited from waiving their rights or claims under ADEA unless such a waiver is “knowing and voluntary.” OWBPA established nine specific criteria for ensuring that such waivers are “knowing and voluntary,” one of which requires that employers must allow employees time to consider any right-to-sue waivers that the employer offers in exchange for early retirement benefits. How many days must an employer allow?