The Oklahoma Highway Patrol and other local law enforcement agencies will team up to conduct ENDUI checkpoints and saturation patrols across the state during a 42-hour enhanced enforcement campaign to end drug-impaired driving.

The campaign, titled END420DUI, is focused on drug-impaired drivers who may be getting high during the 4/20 marijuana day. Historically, the number 420 has been associated with marijuana use. This has become mainstream with musicians, celebrities, professional athletes, and the general public.

In 2014, 63 people died in drug-related crashes in the state of Oklahoma. In 2016, the number of people killed in drug-related crashes in Oklahoma rose to 134*. These numbers reflect an almost 115 percent increase in the number of people killed by drivers who may be under the influence of drugs. The National Highway Traffic Safety Administration indicates the number of drivers involved in fatal crashes after 4:20 pm on April 20 is higher compared to the same times on days one week earlier and one week later.

“The stakes are too high to drive under the influence of anything,” said Lt. Joe Williams with the Oklahoma Highway Patrol. “We will be out in force looking for people who may be driving while impaired. This includes alcohol, marijuana, other narcotics, or prescription medication,” said Lt. Williams.

Checkpoints around the state will be in the following areas in partnership with the listed agencies:

  • Alva – Alva Police Department, Woods County Sheriff’s Office, Oklahoma Highway Patrol.
  • Lawton – Lawton Police Department, Comanche County Sheriff’s Office, Oklahoma Highway Patrol.
  • Oklahoma City – Oklahoma County Sheriff’s Office, Midwest City Police Department, Oklahoma City Police Department, Oklahoma Highway Patrol.
  • Tulsa – Tulsa Police Department, Tulsa County Sheriff’s Office, Oklahoma Highway Patrol

The media is invited to attend these checkpoints to help us raise awareness about the impaired driving problem in Oklahoma. Interviews with members of the Oklahoma Highway Patrol will be available. To coordinate times, locations, and interviews, please email

Other agencies around the state will be doing saturation patrols and other activities in their areas in partnership with the END420DUI campaign.

Thank you for not driving under the influence of any drug – alcohol or marijuana. Together, we can ENDUI in Oklahoma.

The ENDUI enforcement team coordinates multi-jurisdictional events on a regular basis, including sobriety checkpoints and saturation patrols. These efforts are needed to impact Oklahoma’s impaired driving problem across the state. The locations of these activities are driven by data from the Oklahoma Highway Safety Office and by local request.

For more information about this campaign, please visit

*Drug-related crashes are those where at least one driver has tested positive for any amount of drugs, or where a law enforcement officer suspected that a driver might be under the influence of either illegal drugs or medication. These numbers include prescription medication and other drugs that may or may not cause impairment.