Here are a few key questions to ask before making your decision: What Delivery Options and Guarantees Do You Offer? How Do You Track and Monitor Shipments? How Do You Handle Customs Clearance and Documentation? And What Are Your Rates and Fees? By asking these important questions, you can make an informed decision when hiring an expedited freight service provider. Diversified Transportation Services is a leading and reputable expedited freight service provider known for its exceptional full truckload shipping services.