WASHINGTON — Random drug and alcohol tests administered by the Federal Motor Carrier Safety Administration, the Federal Aviation Administration, the Federal Railroad Administration and the Federal Transit Administration to air, bus and rail workers in safety sensitive positions will remain at 2010 levels, says the U.S. Department of Transportation.

 For 2011:

• For bus drivers, the random drug testing rate will be 50 percent; and the random alcohol testing rate will be 10 percent.
• For airline workers, the random drug testing rate will be 25 percent; and the random alcohol testing rate will be 10 percent.
• For rail workers, the random drug testing rate will be 25 percent; and the random alcohol testing rate will be 10 percent.
• For transit workers, the random drug testing rate will be 25 percent; and the random alcohol testing rate will be 10 percent.