Medical variance
Medical variance means a driver has received one of the following from FMCSA that allows the driver to be issued a medical certificate:
(1) An exemption letter permitting operation of a commercial motor vehicle pursuant to part 381, subpart C, of this chapter; or
(2) A skill performance evaluation certificate permitting operation of a commercial motor vehicle pursuant to ยง 391.49 of this chapter.
Source
49 CFR § 390.5T
Scoping language
Unless specifically defined elsewhere, in this subchapter: