There is a good amount of  general knowledge and safe driving practices which all commercial drivers should know. You must take a test on this information to get a CDL. This is known as the CDL "General Knowledge" test.  
             
          This test does not contain information on air brakes, combination vehicles (tractor semi trailer, doubles/triples, or towing trailers), or buses. You must study and pass additional test if it applies to the type of vehicle(s) you wish to drive..             
          
          You must have a commercial driver license and have passed the general knowledge test to drive commercial vehicles. To get the CDL, you must pass a written test. 
          Our CDLPass test preparation software will help you take and pass the general knowledge test.  
            
            
            
            
             
            
          
    
        | Get the CDLPass software and apps below.  | 
   
    
         CDLPass Commercial Drivers License Preparation software for iPhone/iPad | 
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         CDLPass Commercial Drivers License Preparation software for Android OS | 
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         CDLPass Commercial Drivers License Preparation software for MS-Windows | 
       
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         CDLPass Commercial Drivers License Preparation Audio | 
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