Passenger & School Bus Endorsement ELDT: $20 Theory

Do you need ELDT for a passenger or school bus endorsement? Yes, if you are adding a passenger (P) or school bus (S) endorsement for the first time: you need that endorsement's theory and behind-the-wheel training from a provider on the FMCSA Training Provider Registry, completed before your skills test. The S endorsement also requires the P endorsement, so a new school bus driver needs ELDT for both. The theory half can be taken online for $20 per endorsement with our passenger endorsement theory course and school bus endorsement theory course; behind-the-wheel training has to be done in person, in a bus. Drivers who already held P or S before February 7, 2022 do not need ELDT for that endorsement.

Driving a bus is a different job from driving a truck, and the licensing system treats it that way. Any commercial vehicle designed to carry 16 or more people, including the driver, requires a passenger endorsement on your CDL, and driving a school bus requires a second endorsement on top of that. The ELDT rule added a training requirement for both that did not exist before 2022.

This article explains the difference between the P and S endorsements, what ELDT requires for each, why behind-the-wheel training cannot be skipped, what the state adds in tests and background checks, and how to combine endorsement training with a new Class B license if you are starting from scratch.

P vs S

The passenger (P) endorsement lets you operate any commercial motor vehicle designed to transport 16 or more passengers, including the driver. That covers transit buses, motorcoaches, shuttle buses, church buses and tour buses. It sits on top of a Class A, B or C CDL, and the license class has to match the vehicle: most buses are Class B, while an articulated bus or a large coach with a trailer may require Class A.

The school bus (S) endorsement is required to drive a school bus, defined federally as a vehicle used to transport students to and from school or school-sponsored events. The S endorsement is not a substitute for the P endorsement; it is an addition to it. Every school bus driver holds both.

The reason for the layering is that school buses carry unique hazards. Loading and unloading children at the roadside, managing the danger zones around the bus, and evacuating students in an emergency are skills that a transit driver never needs. The S endorsement exists to test those skills separately, and states add their own background checks because the passengers are minors.

If you are only going to drive transit, coaches or shuttles, you need P alone. If you are heading for a school district or a school bus contractor, plan on both from the start.

ELDT theory for each

Under 49 CFR Part 380, the passenger and school bus endorsements each have their own curriculum: Appendix C for passenger and Appendix D for school bus. They are separate courses, and you need both if you are getting both endorsements.

Passenger theory has 18 units covering what is specific to carrying people: post-crash and other emergency procedures, including evacuating passengers; the physical and operating characteristics of buses and motorcoaches; pre-trip, en route and post-trip inspection of emergency exits, interiors, seat belts and accessibility lifts; fueling (never with passengers on board or in an enclosed space) and idling limits; handling baggage, including checking it for prohibited items such as hazardous materials; passenger safety briefings and passenger management, including disruptive passengers; ADA compliance; hours of service for passenger carriers; seat belt use and distracted driving; railroad-highway grade crossings and drawbridges; weigh stations; security and crime; roadside inspections; and penalties for violations.

School bus theory has 11 units of school-specific material: the danger zones around the bus and how to use mirrors to see into them; loading and unloading students, including stop arms, crossing gates and checking the bus for sleeping children at the end of each route; school bus orientation; post-crash procedures; emergency exit and evacuation; railroad-highway grade crossings; student management, including the warning signs of bullying; special safety considerations such as strobe lights, high winds, backing and tail swing; pre- and post-trip inspection of stop arms, crossing arms, emergency exits and other school bus equipment; school bus security; and route and stop reviews.

Like all ELDT theory, there is no federal minimum number of hours. You complete the lessons, pass the assessment with an overall score of 80% or higher, and the provider reports your completion to the Training Provider Registry. Both courses can be taken online, and with us each one costs $20: you pass every module quiz at 80% or higher, retakes are allowed, and your record goes to the registry automatically, usually within minutes, once your permit or license number is in your profile. To see how $20 theory compares with other online providers and with the rest of a CDL budget, read how much ELDT costs in 2026.

If you already hold a CDL and are only adding endorsements, endorsement theory is the whole classroom component. If you are getting a Class B at the same time, you also need Class B theory; more on that below.

Behind-the-wheel requirements

This is the part that catches drivers by surprise. Unlike hazmat, which is theory only, the passenger and school bus endorsements require behind-the-wheel training under ELDT. You cannot complete the P or S endorsement online alone.

Each endorsement's behind-the-wheel curriculum is a single range-and-public-road unit: the exercises take place on a driving range or on public roads, in a bus of the same vehicle group you plan to drive. For P, you show the instructor you know the bus and can inspect it (including emergency exits, seat belts and lifts), handle baggage, give the passenger safety briefing, load and unload passengers and cross railroad tracks safely. For S, the training has to be in a school bus, and you demonstrate danger-zone mirror checks, loading and unloading, checking the bus for sleeping children at the end of the route, emergency evacuation, safe backing and avoiding tail swing, school bus inspections and railroad crossings.

There is no federal minimum hour count for behind-the-wheel training. The provider must determine that you have demonstrated proficiency in every element of the curriculum, and the instructor documents your clock hours, which are reported with your record. Behind-the-wheel training has to be done in person with a provider listed on the registry for the specific BTW training type. Our CDL school finder lists registered behind-the-wheel providers near you; confirm that the one you pick is registered for passenger or school bus training.

There is also a deadline. For P and S, federal rules require you to complete the theory and behind-the-wheel portions within one year of completing whichever one you finished first. If you take theory online first, plan the behind-the-wheel training inside that year.

For school bus drivers, the practical path is usually through the employer. School districts and bus contractors commonly run their own registered training programs because they have the buses and the instructors, so if you have a job offer, ask whether the employer provides the behind-the-wheel training. For transit and coach drivers, the operator often does the same. Independent schools that offer bus BTW exist but are less common than truck schools, so search the registry by location and training type early. Our directory lists registered locations by state, for example CDL schools in New Jersey, North Carolina and Virginia; confirm the passenger or school bus training type on each listing.

State tests and background checks

ELDT is the federal training layer. The state adds its own tests.

For the P endorsement, you take the state passenger transport knowledge test. It can be added to your commercial learner's permit, which lets you practice driving a bus under supervision. Then you take a skills test in a passenger vehicle of the class you are testing for. The skills test includes the pre-trip inspection, basic control skills and a road test, with attention to passenger-specific items such as emergency exits and mirror adjustment.

For the S endorsement, you take the state school bus knowledge test and a skills test in an actual school bus. The skills test includes school-bus-specific items such as demonstrating a student loading and unloading sequence. Federal rules require the S skills test to be taken in a school bus of the same vehicle group you will drive, so a transit bus does not qualify.

Because school bus drivers transport children, states run background checks before issuing the S endorsement. The specifics vary by state but commonly include a criminal history check with fingerprinting, a review of your driving record, and sometimes a check of child abuse registries. Employers must run pre-employment drug testing under Part 382, plus their own screening policies. Expect this step to take weeks in some states, and start it as early as your state allows.

The 14-day rule applies if you are getting a new license class at the same time: you must hold your CLP for at least 14 days before the skills test. If you already hold a CDL, you still need a CLP with the P or S endorsement to practice in a bus: federal rules make a permit a precondition to any CDL upgrade that requires a skills test, and adding P or S does. The holding period may apply too, so check your state.

State-by-state details are on our CDL training pages; the pages for Florida, Illinois, Pennsylvania and Ohio, for example, cover each state's permit and testing steps. The CLP requirements article covers the permit process itself, including the rule that a CLP holder with a P or S endorsement may not carry passengers other than test examiners, inspectors, other trainees and the supervising CDL holder.

Combining with a Class B

Most new bus drivers do not already hold a CDL. They are starting from a regular driver's license and need a Class B CDL plus the P endorsement, and often the S endorsement, all at once.

That means four to six separate training records, not one:

1. Class B theory, covering the general curriculum in Part 380 Appendix B.
2. Class B behind-the-wheel, on the range and on public roads.
3. Passenger endorsement theory and behind-the-wheel.
4. School bus endorsement theory and behind-the-wheel, if you need S.

In practice, a registered employer program or bus school often delivers the behind-the-wheel portions together, since the same bus serves as the Class B vehicle and the passenger vehicle. Theory is where you can save time and money: complete Class B theory and both endorsement theory courses online, at your own pace, before your first day on the range.

The sequence that works for most people is to get the CLP with the P and S knowledge tests included, finish online theory, start the background check, complete behind-the-wheel training with the employer or school, and then take the skills test in the bus once both sets of records are in the registry and the 14 days have passed. If you already hold a CDL, you still need that CLP to train in a bus, and your current CDL number can go in your profile so you can start theory. If you want the full picture of how theory and behind-the-wheel divide, read ELDT theory vs behind-the-wheel.

Bus driving is one of the CDL careers where the employer often trains you, and the P and S endorsements are where that help matters most. Do the theory online, verify the behind-the-wheel provider on the registry, and let the state's tests and background checks run in parallel.