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The Office of the Fairness Commissioner's mandate is to oversee the registration practices adopted by regulated professions and regulated health colleges. This authority is set out in the Fair Access to Regulated Professions and Compulsory Trades Act, 2006, (FARPACTA) and the Health Professions Procedural Code under Schedule 2 of the Regulated Health Professions Act, 1991 (RHPA). FARPACTA governs the 14 non-health professions and Skilled Trades Ontario while the RHPA governs the practices and policies of the 26 self-governing regulated health colleges.​

• Chartered Professional ACCOUNTANTS of Ontario (CPA)
  
• Ontario Association of ARCHITECTS (OAA)
  
• College of AUDIOLOGISTS AND SPEECH-LANGUAGE PATHOLOGISTS of Ontario (CASLPO)​
  
• College of CHIROPODISTS of Ontario (COCOO)​
  
• College of CHIROPRACTORS of Ontario (CCO)
  
• College of DENTAL HYGIENISTS of Ontario (CDHO)​
  
• Royal College of DENTAL SURGEONS of Ontario (RCDSO)
  
• College of DENTAL TECHNOLOGISTS of Ontario (CDTO)
  
• College of DENTU​RISTS of Ontario (CDO)
  
• College of DIETITIANS of Ontario (CDO)
  
• College of EARLY CHILDHOOD EDUCATORS (CECE)
  
• Ontario Association of Certified ENGINEERING TECHNICIANS AND TECHNOLOGISTS​ (OACETT)
  
• Professional ENGINEERS Ontario (PEO)
  
• Ontario Professional FORESTERS Association (OPFA)
  
• Professional GEOSCIENTISTS of Ontario (PGO)
  
• College of HOMEOPATHS of Ontario (CHO)
  
• HUMAN RESOURCES PROFESSIONALS Association (HRPA)
  
• College of KINESIOLOGISTS of Ontario (COKO)
  
• Association of Ontario LAND SURVEYORS (AOLS)
  
• LAW Society of Ontario (LSO)
  
• College of MASSAGE THERAPISTS of Ontario (CMTO)
  
• College of MEDICAL LABORATORY TECHNOLOGISTS of Ontario (CMLTO)
  
• College of MEDICAL RADIATION and IMAGING TECHNOLOGISTS of Ontario (CMRITO)
  
• College of MIDWIVES of Ontario (CMO)
  
• College of NATUROPATHS of Ontario (CONO)
  
• College of NURSES of Ontario (CNO)
  
• College of OCCUPATIONAL THERAPISTS of Ontario (COTO)
  
• College of OPTICIANS of Ontario (COO)
  
• College of OPTOMETRISTS of Ontario
  
• Ontario College of PHARMACISTS (OCP)
  
• College of PHYSICIANS AND SURGEONS of Ontario (CPSO)
  
• College of PHYSIOTHERAPISTS of Ontario​
  
• College of PSYCHOLOGISTS of Ontario (CPO)
  
• College of Registered PSYCHOTHERAPISTS of Ontario (CRPO)
  
• College of RESPIRATORY THERAPISTS of Ontario (CRTO)
  
• Ontario College of SOCIAL WORKERS AND SOCIAL SERVICE WORKERS (OCSWSSW)
  
• Ontario College of TEACHERS (OCT)
  
• Skilled TRADES Ontario (STO)
  
• College of TRADITIONAL CHINESE MEDICINE PRACTITIONERS AND ACUPUNCTURISTS of Ontario (CTCMPAO)
  
• College of VETERINARIANS of Ontario (CVO)​