Why Buy a Category B+ Driving License?
If you need to operate a vehicle or trailer that weighs over 26,000 pounds, you will need a class B license. It is possible to add an endorsement the CDL class you already have by passing a new knowledge and skills test.
Passing a test for category C1+E automatically upgrades your licence to include B+E full entitlement (but subject to the weight limit of your train on your B licence). This is only valid for UK drivers.

Passenger Endorsements
This endorsement is required if you want to operate a vehicle with 16 or more seats (including the driver) in order to transport passengers. This CDL endorsement is only accessible to those who have passed the P written test and the road skills test for passengers. School bus drivers need a separate endorsement and also need to undergo an FBI background check.
The Class B with Passenger Endorsement authorizes you to operate vehicles that have a weight of more than 26,001 pounds, where the towed vehicle is not more than 10,000 pounds. Commonly, these vehicles include city tour, school, and city buses. This CDL class is usually employed by professional bus operators.
Drivers who work as part of a company that's primary purpose is to transport people or property, such as plumbers, meter readers and Realtors do not require this CDL endorsement. However, your employer could require you to obtain this endorsement to satisfy insurance or safety requirements. The regular (Class) Driver License with the Passenger (F) Endorsement can be added to your Commercial Driver's License, if you are a taxi driver, shuttle bus driver, courier, or ambulance driver. Any CDL Classification can have a For-Hire endorsement added. The endorsement code is located on the front of your license, below the expiration date, and right next to the letter "E".
Hazardous Materials Endorsements
When you obtain an endorsement for hazardous materials, it demonstrates to employers that you are qualified to transport certain kinds of freight. This specialized credential will boost your chances of advancing in your career, and could help you get higher-paying driving positions, particularly in trucking. It requires a heightened level of safety awareness that goes above and beyond the usual rules of the road. This includes handling passengers, managing emergencies on the road, and directing evacuation procedures.
You will have to pass a written test on hazardous materials and pass an extensive background check with the Transportation Security Administration. This is due to the fact that these items are explosive, corrosive, or toxic, so only qualified individuals are able to handle these items. Truck drivers who haul chemicals and liquid gas need this certification, as do construction site workers who move substances from their work sites to the construction site.
You may need to have an CDL endorsement P (passenger) for if you operate vehicles that transport passengers, like city buses and tour buses. School bus drivers require a separate S (school bus) endorsement to operate these vehicles. You can also add the tanker or N (tank vehicles) CDL endorsement to you driving license to transport liquids and gases like gas, oil dairy, beverages waste management, or agriculture. Some companies, such as Schneider, offer combination HazMat and tanker (X) endorsements that allow you to haul both types of freight without the requirement for a separate endorsement for H or N.
The need for additional endorsements to operate certain commercial vehicles will depend on the specific requirements of the company you are applying to work for. To ensure that you're investing your time and money wisely it is recommended to determine the kind of endorsements your potential employer requires or prefers. This will help you decide which qualifications you should attain before you start your driving career and decrease the chance of spending money on unnecessary endorsements. Many companies reimburse drivers for the cost of obtaining CDL endorsements. This is an excellent way to begin your career in driving.
Combination Endorsements
The right endorsements allow drivers to drive cars they otherwise wouldn't be able to. They can expand their horizons and become the most sought-after resource on the job market. Schneider suggests that drivers meet with professional career counsellors and industry experts to better understand which combinations of endorsements are the most suitable for their goals.
For example the T combination endorsement allows CDL Class A and B license holders the ability to drive multiple trailers, such as double and triple trailers. This requires advanced driving and an understanding of how trailers move relative to each the other. They are more at risk of overturning or jackknifing compared to single-trailer truck. Additionally the X endorsement gives Class A and B CDL holders the ability to haul HazMat freight using tanker trucks.
Trailer Endorsements
Those who transport passengers for a living need to obtain their Regular (Class D) driver license upgraded by the For-Hire (F) endorsement. Examples of drivers that require this endorsement are taxi drivers, shuttle service drivers couriers, delivery services and couriers (flowers pizza, flowers) as well as ambulance drivers. Certain employees who work on commission or for their own business and don't transport people or property as part of their work (such as plumbers, meter readers, Realtors) may also require the For-Hire endorsement.
The "T" endorsement permits CDL holders to operate vehicles that have triple or double trailers. talks about it does not pay back drivers who obtain this endorsement. The "X" endorsement allows Class A and B CDL holders to haul HazMat freight on tankers. This combination of endorsements is sometimes referred to as a "combo" or an "all-hazards" endorsement.