Other ESA provisions relating to overtime, such as requirements . B relating to daily and weekly leave, remain in force. Employees can always revoke overtime arrangements with two weeks` notice. An overtime agreement must be in writing and must be dated and signed by you, your union and your employer. Eliminating the need to approve employment standards: Bill 66 eliminates the requirement for employers to obtain approval from the Director of Employment Standards to (i) enter into agreements that allow employees to work weekly hours of more than 48 hours and (ii) enter into overtime placement agreements. In addition, employers are required to comply with the ESA and these averaging agreements must be compliant and implemented for legitimate purposes. For example, agreements must include an expiry date that is no more than two years after the start date for non-unionized workers and no later than the date on which a subsequent collective agreement comes into effect for unionized workers. .