We don't have a license system in Ontario. Only daycare centres are licensed and there are some agencies that are licensed and will contract with providers for services but it is the agency that is licensed not the caregiver. Most caregivers work independently. You are allowed to care for 5 children aged 0 - 10 years old and your own children do not count in that number of 5. Other than that there aren't really any rules just best practices you pick up from talking to other caregivers.