The Employment Standards Act (ESA) is a law in Ontario that protects workers' rights. This law tells employers how to treat workers fairly.An employee in Ontario has a right to find out from his or her employer about the gender predominance of their job class. From work hours to minimum wage, parental leave and termination pay, here is what you need to know about your rights and protections as an Ontario worker. Parttime, contract, and seasonal employees can file a complaint under the Pay Equity Act. The only exception is a student working during vacation. Every person has the right to equal treatment in employment without discrimination based on Code grounds.