---
kind: "section"
citation: "49 C.F.R. § 383.93"
title: "49"
number: "383.93"
heading: "Endorsements."
url: "https://uscodex.org/cfr/49/383.93"
---

# §383.93. Endorsements.

- (a) **General.**
  - (1) In addition to passing the knowledge and skills tests described in [subpart G](/cfr/49/subpartG.md) of this part, all persons who operate or expect to operate the type(s) of motor vehicles described in [paragraph (b)](#b) of this section must pass specialized tests to obtain each endorsement. The State shall issue CDL endorsements only to drivers who successfully complete the tests.
  - (2) **The only endorsements allowed on a CLP are the following—**
    - (i) Passenger (P);
    - (ii) School bus (S); and
    - (iii) **Tank vehicle (N).**
  - (3) The State must use the codes listed in [§ 383.153](/cfr/49/383.153.md) when placing endorsements on a CLP or CDL.
- (b) **Endorsement descriptions.** An operator must obtain State-issued endorsements to his/her CDL to operate commercial motor vehicles which are:
  - (1) Double/triple trailers;
  - (2) Passenger vehicles;
  - (3) Tank vehicles;
  - (4) Used to transport hazardous materials as defined in [§ 383.5](/cfr/49/383.5.md); or
  - (5) **School buses.**
- (c) **Endorsement testing requirements.** The following tests are required for the endorsements contained in [paragraph (b)](#b) of this section:
  - (1) **Double/Triple Trailers—** a knowledge test;
  - (2) **Passenger—** a knowledge and a skills test;
  - (3) **Tank vehicle—** a knowledge test;
  - (4) **Hazardous Materials—** a knowledge test; and
  - (5) **School bus—** a knowledge and a skills test.

## Notes

### Amendments

[53 FR 27651, July 21, 1988, as amended at 67 FR 49760, July 31, 2002; 68 FR 23850, May 5, 2003; 76 FR 26887, May 9, 2011; 84 FR 52034, Oct. 1, 2019]

### Source

Source: 53 FR 27651, July 21, 1988, unless otherwise noted.

### Authority

Authority: 49 U.S.C. 521, 31136, 31301, et seq., and 31502; secs. 214 and 215 of Pub. L. 106-159, 113 Stat. 1748, 1766, 1767; sec. 1012(b) of Pub. L. 107-56, 115 Stat. 272, 397, sec. 4140 of Pub. L. 109-59, 119 Stat. 1144, 1746; sec. 32934 of Pub. L. 112-141, 126 Stat. 405, 830; secs. 5401 and 7208, Pub. L. 114-94, 129 Stat. 1312, 1546, 1593 (49 U.S.C. 31305(d)), sec. 23019 of Pub. L. 117-58, 135 Stat. 429, 777; and 49 CFR 1.87.

### Source

Source: 52 FR 20587, June 1, 1987, unless otherwise noted.

### Amendments

[53 FR 27651, July 21, 1988, as amended at 67 FR 49760, July 31, 2002; 68 FR 23850, May 5, 2003; 76 FR 26887, May 9, 2011; 84 FR 52034, Oct. 1, 2019]