Carries gasoline, fuel oil, propane. Will probably require a Hazmat endorsement, and may be considered a more dangerous job.
Used to carry water, milk, juice, etc. Some are equipped with heating and/or cooling systems. Also have dry bulk variations to carry sugar, flour, salt, etc.
Used to transport various types of industrial chemicals. Some are specifically designed to carry corrosive chemicals.
Used to haul sand, fertilizer, roofing asphalt.
Some tanker trailers will be divided in to several different sections by bulkheads (partitions). This will require the driver to pay closer attention to weight distribution, by not loading too much weight in the front or rear of the vehicle.
Other tankers will be "baffled" No, not "bewildered" or "confused". Basically just bulkheads with holes in them.to help control the backwards and forwards liquid surges.
Food-grade tankers are usually un-baffled (also called "smooth bore" tanks), and have nothing to slow down liquid surges. Because of the difficulty in washing them, sanitation regulations prevent partitioning tanks that will hold food items.
Tankers are not completely full, as a totally full tank trailer will probably exceed maximum weight limits, so the slosh factor is ever-present when pulling them.
Fun Fact: When you unload a tanker you have to vent it by opening up the hatch on top. If you unload a tanker without venting it, the trailer will implode like an empty soda can.
Recent changes in FMCSA regulations mean that drivers pulling liquid freight over 1,000 gallons, regardless of trailer type, hazardous or otherwise, will be required to have a tanker endorsement:
"Tank vehicle means any commercial motor vehicle that is designed to transport any liquid or gaseous materials within a tank or tanks having an individual rated capacity of more than 119 gallons and an aggregate rated capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or the chassis." Hauling more than 1,000 gallons of liquid, regardless of trailer type, will require a driver to have a tanker endorsement.
A CDL is required to drive any of the following vehicles:
Explosive, flammable, poisonous or otherwise potentially dangerous cargo. Large amounts of especially hazardous cargo are required to be placarded under HAZMAT regulations
A strong wall-like structure placed at the front of a flatbed trailer (or on the rear of the tractor) used to protect the driver against shifting cargo during a front-end collision. May also refer to any separator within a dry or liquid trailer (also called a baffle for liquid trailers) used to partition the load.
A commercial motor vehicle is any vehicle used in commerce to transport passengers or property with either:
The CSA is a Federal Motor Carrier Safety Administration (FMCSA) initiative to improve large truck and bus safety and ultimately reduce crashes, injuries, and fatalities that are related to commercial motor vehicle
The FMCSA was established within the Department of Transportation on January 1, 2000. Their primary mission is to prevent commercial motor vehicle-related fatalities and injuries.
What Does The FMCSA Do?
A department of the federal executive branch responsible for the national highways and for railroad and airline safety. It also manages Amtrak, the national railroad system, and the Coast Guard.
State and Federal DOT Officers are responsible for commercial vehicle enforcement. "The truck police" you could call them.
When a violation by either a driver or company is confirmed, an out-of-service order removes either the driver or the vehicle from the roadway until the violation is corrected.