The bill increases the penalties for illegally overtaking a vehicle on the left in a no-passing zone and clarifies that no-passing zones are indicated by a solid yellow line or line pavement markings. The bill requires the Colorado department of transportation to prioritize installing signage on roadways with increased incidents of crashes resulting from illegal overtaking on the left.     The bill increases the penalties for multiple speeding violations within a one-year, 2-year, or 5-year period and increases the penalty for drivers driving a vehicle 100 miles per hour or greater. The bill requires that drivers who have multiple speeding violations within a one-year, 2-year, or 5-year period receive a summons and complaint upon committing their violation instead of a penalty assessment notice.      The bill increases the penalty for violating regulations regarding transporting hazardous materials by motor vehicle, including increasing the penalty for a second or subsequent violation.     The bill appropriates $30,943 to the Colorado department of revenue from the Colorado DRIVES vehicle services account.(Note: Italicized words indicate new material added to the original summary; dashes through words indicate deletions from the original summary.)(Note: This summary applies to the reengrossed version of this bill as introduced in the second house.)