FMCSA amends the Federal Motor Carrier Safety Regulations (FMCSRs) to allow States the option of issuing a commercial learner's permit (CLP) with an expiration date of up to one year from the date of initial issuance. The CLP must be valid for no more than one year from the initial date of issuance without requiring the CLP holder to retake the general and endorsement knowledge tests. CLPs issued for a period of less than one year may be renewed provided the CLP is not valid for more than one year from the date of initial issuance. This rule does not require a State to revise its current CLP issuance practices, unless it chooses to do so. This rule is a deregulatory action as defined by Executive Order (E.O.) 13771, ``Reducing Regulation and Controlling Regulatory Costs.''