While policing on most MTO-managed roads is provided by the Ontario Provincial Police, certain law enforcement functions are provided by MTO Transportation Enforcement Officers and Ministry of Environment Emissions Enforcement Officers. Ministry of Transportation Enforcement Officers (TEOs) enforce a variety of provincial highway safety legislation specific to operators of commercial vehicles. Driver hours of service, cargo securement, dangerous goods transportation, weights and dimensions, and vehicle maintenance and roadworthiness are the predominant focus of TEO inspection activities. Ontario's Highway Traffic Act, its regulations, the Compulsory Automobile Insurance Act, and the Dangerous Goods Transportation Act are core pieces of legislation from which TEOs derive their enforcement authorities. TEOs conduct commercial vehicle inspections using a standardized procedure established by the Commercial Vehicle Safety Alliance (CVSA). Transportation Enforcement Officers inspect commercial vehicles, their loads, and driver's qualifications and documentation. They collect evidence, issue provincial offence notices or summons to court for violations, and testify in court. Transportation Enforcement Officer deployment ranges from highway patrol and Truck Inspection Station (TIS) duties, audits of commercial vehicle operators, inspection and monitoring of bus and motor-coach operators, and the licensing and monitoring of Motor Vehicle Inspection Stations. Blitz-style joint force operations are periodically conducted in concert with provincial and municipal police. Although many Transportation Enforcement Officers are licensed vehicle mechanics, most are not. TEOs hail from various backgrounds including driver licensing examination, automobile repair, commercial truck driving and other law enforcement agencies. Offices MTO's headquarters are located on three campuses: Garden City Tower, St. Catharines, Ontario - 301 St. Paul Street Downsview Complex, Toronto, Ontario - 87, 125, 145, and 159 Sir William Hearst Avenue Ferguson Block, Toronto, Ontario - 77 Wellesley Street West There are five regional offices: Eastern - Kingston, Ontario Central (Downsview) - Toronto, Ontario Northwestern - Thunder Bay, Ontario Southwestern - London, Ontario Northeastern - North Bay, Ontario Area offices are located in: Bancroft, Ontario North Bay, Ontario Chatham, Ontario Ottawa, Ontario Owen Sound, Ontario Cochrane, Ontario Port Hope, Ontario Huntsville, Ontario Kenora, Ontario Sault Ste. Marie, Ontario Kingston, Ontario London, Ontario Sudbury, Ontario Thunder Bay, Ontario New Liskeard, Ontario See also Connecting Link Vehicle registration plates of Ontario Ontario's Drive Clean Driving licence in Canada#Ontario Partial cloverleaf interchange Ontario tall-wall References Bibliography External links DriveTest website Commercial Vehicle Safety Alliance website MTO Locations in Greater Toronto Area Transportation Transport in Ontario Ontario Law enforcement agencies of Ontario Motor vehicle registration agencies 1916 establishments