20. Any provision of an agreement shall be void and of no effect if the provision precludes an employee from making a protected disclosure or purports to require an employee to
(a) agree to not make a disclosure under this Act during or after his period of employment;
(b) refrain from instituting any proceedings pursuant to this Act; or
(c) withdraw or abandon any disclosure made under this Act, or proceedings instituted pursuant to this Act.
Referenced Legislation: Protected Disclosures Act (2011)