The particular duties of delivery drivers depend on the industries where they work, the policies implemented by their employers and if their job includes sales work. They are required to observe speed limits and obey all traffic and road signs. They also have to keep records of their driving activities such as working hours, mileage and gas receipts. Delivery drivers are also expected to perform simple maintenance work on their vehicles such as filling tires with air as needed, cleaning the vehicle’s interior and exterior parts, etc. Drivers are also responsible for loading and unloading the goods, picking them up from their origin and delivering them to their destination. The origin may be the manufacturer of the goods and destination is its distribution center. The delivery driver may also have to get the goods from a distribution center and deliver them to a customer. They will have to interact with customers to get and receive payment for the goods, sign documents and give receipts.