Law enforcement officers from approximately 100 police departments, sheriff’s offices, and the Michigan State Police will make impaired driving a priority in Michigan during the enforcement crackdown, which runs from October 18 through November 4, the Michigan Office of Highway Safety Planning (OHSP) said in a press release.

Officers will be on the lookout for impaired drivers and will focus attention on those counties with a high number of fatal crashes involving drugs and alcohol.

The month of October saw the third highest number of alcohol-involved fatal crashes in Michigan between 2011 and 2016 with 151 according to the OHSP. Only the months of August (167) and July (159) saw a higher number of fatal crashes. October was also the fourth highest month for the number of drug-involved fatal crashes in Michigan during the same six-year period, with 84.

It is illegal to drive with a blood alcohol concentration (BAC) of .08 or higher, although motorists can be arrested at any BAC level if an officer believes they are impaired. Motorists face enhanced penalties if arrested for a first-time drunk driving offense with a .17 BAC or higher.