Sarra's answer is a good one. In addition, Roadmaster offers 3-week and 4-week courses to men and women that earn them a CDL A or B and often a job with a company after receiving it. Sometimes, the company will even pay the tuition. Twelve schools operate around the USA, with some scholarships available, as well as Veteran's Training under VA financing. RoadmasterDOTcom 1-800-831-1303
Roadmaster did a very good job in the 1990s - 2000s, when my employer referred large numbers of people to the classes and furnished tuition for them under the Job Training Partnership Act. WIA (county jobs offices) would be a agency to contact for assistance at the county level at this time and funds may or may not be available to help. Good luck!