Okla. Stat. tit. 47, § 6-110.1
A. The following endorsements shall be placed on an Oklahoma driver license to any person qualifying therefore as determined by the Department of Public Safety.
| Endorsement | Authorizes the operation of: |
| "H" | A non-tank-type vehicle used to transport hazardous materials in placardable amounts pursuant to 49 C.F.R., Part 172, subpart F; |
| "M" | A motorcycle; |
| "N" | A tank vehicle as defined in Section 1-173.1 of this title; |
| "P" | A vehicle designed by the manufacturer to transport sixteen or more passengers, including the driver; |
| "S" | A school bus; |
| "T" | A vehicle with double or triple trailers; |
| "X" | A tank vehicle used to transport hazardous materials in placardable amounts pursuant to 49 C.F.R., Part 172, subpart F. |
Laws 1990, c. 219, § 17, eff. January 1, 1991; Amended by Laws 1991, c. 162, § 3, emerg. eff. May 7, 1991; Amended by Laws 2003, SB 704, c. 392, § 6, emerg. eff. July 1, 2003 (superseded document available).