Sobriety checkpoints will be conducted in Lancaster and York counties and roving DUI patrols are planned in Adams, Lancaster and York counties as part of a July 4 holiday "Drive Sober or Get Pulled Over" enforcement effort.

The sobriety checkpoints and roving DUI patrols will all be held sometime between 6 p.m. Friday and 6 p.m. Sunday, the Center for Traffic Safety announced.

Sobriety checkpoints, roving DUI patrols and other enforcement activities organized as part of this program are funded with federal grant money provided by the Pennsylvania Department of Transportation, and are conducted on sections of roads which have proven to have a high incident rate for impaired drivers both in terms of crashes and arrests.

Last year, Pennsylvania saw 325 alcohol- and drug-related crashes resulting in 15 lives lost during the Independence Day holiday period, which ran from Friday, June 30, to Sunday, July 9.