A highway patrol is a police unit, detail, or law enforcement agency created primarily for the purpose of overseeing and enforcing traffic safety compliance on roads and highways within a jurisdiction. They are also referred to in many countries as traffic police, although in other countries this term is more commonly used to refer to foot officers on point duty who control traffic at junctions.
The Highway Patrol are specialized units part of the Highway District with the Transportation Bureau of the New York City Police Department. The Highway Patrol is primarily responsible for patrolling and maintaining traffic safety on limited-access highways within New York City. The Highway Patrol's other duties and roles include accident investigations, advanced driver and radar/laser speed enforcement training for NYPD officers, field sobriety testing at the various testing locations in each Patrol Borough, dignitary and parade escorts, hazardous material and truck traffic enforcement, anti-drag racing programs, and anti-terrorist checkpoints at key bridges and intersections in the city.
The Ministry of Transportation (MTO) is the provincial ministry of the Government of Ontario that is responsible for transport infrastructure and related law in Ontario, Canada. The ministry traces its roots back over a century to the 1890s, when the province began training Provincial Road Building Instructors. In 1916, the Department of Public Highways of Ontario (DPHO) was formed and tasked with establishing a network of provincial highways. The first was designated in 1918, and by the summer of 1925, sixteen highways were numbered. In the mid-1920s, a new Department of Northern Development (DND) was created to manage infrastructure improvements in northern Ontario; it merged with the Department of Highways of Ontario (DHO) on April 1, 1937. In 1971, the Department of Highways took on responsibility for Communications and in 1972 was reorganized as the Ministry of Transportation and Communications (MTC), which then became the Ministry of Transportation in 1987.
The Wisconsin State Patrol is the state patrol for the state of Wisconsin and is a division of the Wisconsin Department of Transportation. The Wisconsin State Patrol enforces traffic and criminal laws, oversees the motor carrier safety and weight facilities (SWEFs), inspects and regulates motor carriers, school buses and ambulances, and assists local law enforcement agencies with traffic safety, civil disturbances and disasters.
A weigh station is a checkpoint along a highway to inspect vehicular weights and safety compliance criteria. Usually, trucks and commercial vehicles are subject to the inspection.
The Florida Highway Patrol (FHP) is a division of the Florida Department of Highway Safety and Motor Vehicles. It is Florida's highway patrol and is the primary law enforcement agency charged with investigating traffic crashes and criminal laws on the state's highways.
The Oklahoma Highway Patrol (OHP) is a major state law enforcement agency of the government of Oklahoma. A division of the Oklahoma Department of Public Safety, the OHP has traffic enforcement jurisdiction throughout the state. OHP was legislatively created on July 1, 1937, due to the growing problem of motor vehicle collisions, the expansion of highway systems, and the increase in criminal activities.
The Colorado State Patrol(CSP) (originally known as the Colorado State Highway Courtesy Patrol), based in Lakewood, Colorado, is a division of the Colorado Department of Public Safety, and is one of the official state patrol agencies of Colorado, along with the Colorado Bureau of Investigation (CBI), Colorado Division of Criminal Justice (DCJ), Colorado Division of Fire Prevention & Control (DFPC), and Colorado Division of Homeland Security and Emergency Management (DHSEM). Additionally, the Executive Director's Office supports operations of the five divisions and houses the Colorado School Safety Resource Center (CSSRC) and Colorado Integrated Criminal Justice Information Systems (CJIS). The CSP primarily enforces traffic laws on interstates and state highways and guards the state capitol and the Governor of Colorado.
The Minnesota State Patrol is the primary state patrol agency for Minnesota and serves as the de facto state police for the state. While Minnesota State Patrol troopers have full powers of arrest throughout the state, their primary function is traffic safety and vehicle law enforcement. The State Patrol is a division of the Minnesota Department of Public Safety.
The Texas Highway Patrol is a division of the Texas Department of Public Safety and is the largest state-level law enforcement agency in the U.S. state of Texas. The patrol's primary duties are enforcement of state traffic laws and commercial vehicle regulation, but it is a fully empowered police agency with authority to enforce criminal law anywhere in the state. Highway patrol troopers are also responsible for patrolling the state Capitol Complex in Austin and providing security to the governor. The current Chief is Lieutenant Colonel Dwight Mathis.
The Oklahoma Department of Public Safety (ODPS) is a department of the government of Oklahoma. Under the supervision of the Oklahoma Secretary of Public Safety, DPS provides for the safety of Oklahomans and the administration of justice in the state. DPS is responsible for statewide law enforcement, vehicle regulation, homeland security and such other duties as the Governor of Oklahoma may proscribe.
The New Hampshire State Police is a state police agency within the Department of Safety of the U.S. state of New Hampshire. Police employees of the State Police are ex officio constables and have the primary role of patrolling the state highways, enforcing the laws and regulations of the highway and motor vehicles, providing law enforcement for municipalities with no or part time coverage, and regulations relating to the transportation of hazardous materials. The jurisdiction of the State Police is generally throughout the state of New Hampshire.
The New Mexico State Police (NMSP) is the law enforcement agency of the U.S. state of New Mexico. Administered by the New Mexico Department of Public Safety, it has jurisdiction anywhere in the state, often working in tandem with local and federal law enforcement. Founded in 1905, NMSP's official mission is to protect the lives, property and constitutional rights of the people of New Mexico.
The North Carolina State Highway Patrol (NCSHP) is the highway patrol agency for North Carolina which has no per-se "state police" agency. The Patrol has jurisdiction anywhere in the state except for federal or military installations and on the Cherokee Indian Reservation or on Cherokee outlying lands in the western mountains. NCSHP personnel at times conduct formations, inspections, honor guard activities. The primary mission of the North Carolina State Highway Patrol is to ensure safe and efficient transportation on the streets and highways, reduce crime, protect against terrorism, enforce motor vehicle laws, and respond to natural and man-made disasters.
The Tennessee Highway Patrol (THP) is the State Patrol organization for the U.S. state of Tennessee, responsible for enforcing all federal and state laws relating to traffic on the state's federal and state highways. The agency was created to protect the lives, property, and constitutional rights of people in Tennessee. The THP is a division of the Tennessee Department of Safety and Homeland Security.
The Ohio State Highway Patrol is a division of the Ohio Department of Public Safety and has the primary responsibility of traffic enforcement in the U.S. state of Ohio.
The Georgia Department of Public Safety (GDPS) is a state body that is responsible for statewide law enforcement and public safety within the U.S. state of Georgia. The current Commissioner of the department is Chris C. Wright, who is also Colonel of the Georgia State Patrol.
The Maryland Transportation Authority Police is the eighth-largest law enforcement agency in the U.S. state of Maryland and is charged with providing law enforcement services on Maryland Transportation Authority highways and facilities throughout the Maryland, in addition to contractual services that are provided at Baltimore–Washington International Thurgood Marshall Airport, and the Port of Baltimore.
In the United States, the state police is a police body unique to each U.S. state, having statewide authority to conduct law enforcement activities and criminal investigations. In general, state police officers or highway patrol officers, known as state troopers, perform functions that do not fall within the jurisdiction of the county sheriff, such as enforcing traffic laws on state highways and interstate expressways, overseeing the security of the state capitol complex, protecting the governor, training new officers for local police forces too small to operate an academy and providing technological and scientific services. They support local police and help to coordinate multi-jurisdictional task force activity in serious or complicated cases in those states that grant full police powers statewide.
British Columbia Commercial Vehicle Safety & Enforcement is a provincial law enforcement agency that is responsible for the compliance and enforcement of the commercial transport sector, protection of the environment and transportation infrastructure of British Columbia, increasing road safety and protecting the motoring public.
Arkansas 
