Which act must regulated health professionals in Ontario comply with?

Regulated health professionals in Ontario must comply with the Personal Health Information Protection Act (PHIPA) because this legislation is specifically designed to govern the collection, use, and disclosure of personal health information about individuals. Compliance with PHIPA ensures that health professionals uphold confidentiality and privacy standards for patient information, which is a critical aspect of providing ethical and responsible care.

PHIPA not only protects the personal health information of patients but also sets out the rights of individuals regarding their information and the obligations of health information custodians. This is vital for maintaining trust in the healthcare system.

While the other acts mentioned have important roles in occupational health or the conduct of specific professions, they do not directly address the management and protection of personal health information in the same comprehensive manner as PHIPA. Therefore, C is the most relevant choice regarding the obligations of regulated health professionals in Ontario.