Drew Cullen, Penske Truck Leasing's vice president of fuels and environmental affairs was among the industry experts appearing on a recent March 26 Alternative Clean Transportation (ACT) Expo webinar titledAlternative Fuel Vehicle Fleet Leasing. Watch replay here. Topics discussed on the webinar included selecting the proper mix of alternative fuel vehicles, refueling and infrastructure, best fleet maintenance practices for alternative fueled vehicles such as natural gas trucks, and other aspects of evaluating and using alternative fueled vehicles in commercial fleet applications. Penske Truck Leasing is a major sponsor of this year's ACT Expo that will be held May 5-8 in Long Beach, Calif.