This week's tip, taken from the Iowa Driver's Manual, concerns driving conditions that make it dangerous to pass a vehicle on a two-lane road. You may want to pass this advice along to your fleet drivers as a friendly reminder.

Do not pass when:

• Your vehicle is coming to the top of a hill

• Your vehicle is going around a curve and your view along the highway is obstructed

• Your vehicle is within 100 feet of a narrow bridge, viaduct or tunnel that has a sign posted to let you know it is there

• Your vehicle is within 100 feet of an intersection or railroad crossing

• Your vehicle must go off the pavement or onto the shoulder of the road in order to pass

• There is a stopped school bus in your lane or the oncoming lane, or there is a school bus with its red or amber warning signal lights flashing or its stop arm out

• Oncoming traffic is so close it would be dangerous to try to make it around the vehicle you are passing.