To amend title 49, United States Code, to enhance the safety of motor carrier operations and the Nation's highway system, including highway-rail crossings, by amending existing safety laws to strengthen commercial driver licensing, to improve compliance, and for other purposes.

[AI summary unavailable — showing source text] Title I: Motor Carrier Safety - Motor Carrier Safety Act of 1999 - Amends Federal transportation law to direct the Secretary of Transportation, in prescribing regulations on minimum standards for testing and ensuring the fitness of an individual operating a commercial motor vehicle, to require that such individual has received training, including in-vehicle training, in the safe operation of a motor vehicle of the type the individual operates or will operate. (Sec. 102) Requires a State, in order to avoid withholding of its apportionment of Federal-aid highway funds, to comply with certain commercial driver's license requirements, including to: (1) record on a driver's commercial driver's license record each conviction for a moving traffic violation, including one committed in a non-commercial motor vehicle; (2) not issue a commercial driver's license to an individual within three years after the date the individual was convicted of any drug- or alcohol-related traffic violation, including one committed in a non-commercial motor vehicle; and (3) not issue a special license or permit to a commercial driver's license holder that permits the driver to drive a commercial motor vehicle …