Section R708-24-2 - Procedure for Renewal of a CDL(1) When applying for a CDL renewal, or limited-term CDL, applicants shall use the same procedure used to obtain an original CDL. The applicant shall comply with Sections 53-3-105, 53-3-407, and 49 CFR 383 and 391.(2) All knowledge tests and/or skills tests will be waived by the Driver License Division except: (a) the hazardous materials knowledge test which is required by 49 CFR 383.73;(b) when changes in an applicant's medical condition may require further testing/evaluation;(c) if there are factors, including lack of knowledge, which indicate the applicant may have an inability to operate commercial vehicles in a reasonable, prudent and safe manner.(3) Applicants whose CDL has expired for a period of more than six months, or whose driving privileges are disqualified, suspended, or revoked, are required to complete appropriate knowledge and skills tests.(4) Applicants shall comply with Federal Highway Administration requirements contained in 49 CFR 383.71, 383.73 and 391.Utah Admin. Code R708-24-2