Marion County Law Enforcement Agencies will be participating in  a STEP Wave, as part of the National Highway Traffic Safety Administration’s Special Traffic Enforcement Program this week surrounding the St. Patrick’s Day holiday. Lt. Paul Haase at the Pella Police Department says Police Officers will have heightened enforcement of drunk and impaired driving violations, and will also be on the lookout for seatbelt violations. The program last through Sunday and law enforcement officials are encouraging extra precaution for drivers on the road.