You will drive a nonexempt 40,000-pound combination with a trailer rated at 14,000 pounds. Which base CDL class covers this combination?
Correct answer: Class A.
A combination at 26,001 pounds or more falls in Class A when the towed unit exceeds 10,000 pounds. Required endorsements and restrictions still matter.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - CDL Classifications, printed 1-1; South Dakota general vehicle criteria, physical PDF page 12; physical PDF page 30. ↗
A nonexempt straight truck has a GVWR of 30,000 pounds and does not tow a trailer. What is the minimum base CDL class for its weight?
Correct answer: Class B.
Class B covers a single vehicle of 26,001 pounds or more. Intrastate operation does not by itself remove the CDL requirement.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - CDL Classifications, printed 1-1; South Dakota general vehicle criteria, physical PDF page 12; physical PDF page 30. ↗
A nonexempt bus has a GVWR of 24,000 pounds and is designed for 18 people including its driver. It is nearly empty today. Which licensing conclusion is correct?
Correct answer: It falls within CDL Class C and requires the passenger endorsement.
For this below-Class-B bus, the designed seating capacity—not today's passenger count—triggers Class C passenger licensing.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - CDL Classifications, printed 1-1; South Dakota general vehicle criteria, physical PDF page 12; physical PDF page 30. ↗
A nonexempt delivery truck below 26,001 pounds carries a load requiring hazardous-material placards. What is the appropriate licensing conclusion?
Correct answer: Its low weight does not exempt it; Class C and the required hazardous-material endorsement apply.
Required placarding can trigger Class C even when the vehicle is below the weight threshold for Class B. The scenario excludes specific exemptions.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - CDL Classifications, printed 1-1; South Dakota general vehicle criteria, physical PDF page 12; physical PDF page 30. ↗
A 19-year-old South Dakota commercial driver has a K restriction and is offered a trip across the state line. What does that restriction mean?
Correct answer: The driver's commercial operation is restricted to intrastate driving.
South Dakota's ordinary commercial minimum age is 18, with interstate operation requiring age 21. K restricts commercial driving to intrastate operation; a higher vehicle class or an empty trailer does not remove that restriction.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, South Dakota Commercial Driver License Restrictions - K; CLP interstate age boundary, physical PDF page 15; physical PDF page 20. Current-source cross-check (reviewed September 29, 2026): South Dakota Medical Self-Certification Statement, March 2026, under-21 NI/EI exclusion, https://www.sd.gov/sys_attachment.do?sys_id=4c6ea4208794cf14a086bae9cebb3575. ↗
You obtained a South Dakota CLP five days ago and have completed the required training. Can you take the ordinary commercial skills test now?
Correct answer: No; hold a valid CLP for at least 14 days before the skills test.
Training completion and the CLP holding period are separate requirements. South Dakota requires a CLP held for 14 days before the CDL skills test.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, Skills Tests - 14-day CLP holding period; physical PDF page 16. Current-source cross-check (reviewed September 29, 2026): South Dakota CDL FAQ, What is the process for getting a CDL?, https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043696. ↗
An adult applicant has no South Dakota driver license and wants a South Dakota CLP. Which starting qualification does the licensing program require?
Correct answer: Hold a valid South Dakota Class 1 or Class 2 operator's license.
The CLP requirements include being at least 18 and holding a valid South Dakota Class 1 or Class 2 operator's license. Passing a commercial knowledge test does not replace the underlying license.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, Commercial Drivers Learner's Permit - qualifications; physical PDF page 15. ↗
A South Dakota CLP holder wants to practice in a Class A combination. A friend has only a noncommercial Class 1 car license. Can that friend provide the required commercial supervision?
Correct answer: No; the supervisor must be at least 21 with the valid CDL class and endorsements for the vehicle.
South Dakota requires an accompanying CDL holder at least 21 who is licensed for the vehicle. In this truck, the supervisor sits beside the learner to give instruction; a car license alone is insufficient.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, Commercial Drivers Learner's Permit - accompanying qualified CDL holder; physical PDF page 15. ↗
You have a South Dakota CLP with passenger and school-bus endorsements. May you use a practice drive to carry the regular school route's children?
Correct answer: No; the CLP is not authority to transport the regular passenger or school-bus load.
A P or S CLP does not authorize regular passenger service. The listed exceptions concern such people as authorized examiners, inspectors, trainees, and the accompanying qualified CDL holder—not the regular school route's children.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - Restrictions, (P) No passengers in CMV bus, printed 1-3; state CLP passenger prohibition, physical PDF page 15; physical PDF page 32. ↗
A South Dakota CLP holder with the tank endorsement will practice with a tank vehicle. Its liquid has been drained, but hazardous residue remains. Is that permitted?
Correct answer: No; the tank must be empty and must not contain hazardous-material residue.
The CLP tank restriction requires an empty tank. A tank that carried hazardous material must also be purged of residue; draining liquid alone is insufficient.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, Commercial Drivers Learner's Permit - empty tank and purged hazardous residue; physical PDF page 15. ↗
A South Dakota applicant wants hazardous-material authority on a commercial learner permit. Can an H endorsement be added to the CLP for supervised hazardous-material hauling?
Correct answer: No; the CLP endorsements are limited to P, S, and N, with their permit restrictions.
The South Dakota manual limits CLP endorsements to passenger, school bus, and tank, with permit restrictions. It does not allow an H endorsement on the learner permit.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, 1 Introduction - CDL Endorsements & Restrictions, CLP P/S/N limit, printed 1-2; physical PDF page 31. ↗
A new applicant seeks a first Class A CDL and has no applicable training exemption. Is self-study alone enough to satisfy entry-level driver training requirements?
Correct answer: No; the applicant must complete the applicable ELDT requirements through a registered training provider.
A first Class A applicant without an applicable exemption must complete required ELDT through a registered provider before the skills test. Self-study does not replace that training and its reported completion.
Source: South Dakota Commercial Driver License Manual, Revised 07/2025, Entry-Level Driver Training requirements - applicable drivers and application process; Training Provider Registry, physical PDF page 9; physical PDF page 8. ↗
