The Solomon–Lautenberg amendment is a 1991 law that requires U.S. states to impose a mandatory six-month drivers license suspension for drug offenses, or face loss of federal highway funds. The suspension applies regardless of whether the offense involved driving under the influence of a drug or not. For example, a person could be charged with possession of cannabis in his home and still be penalized with a driver's license suspension. States are allowed to pass legislation opting out of this. This initiative was called "smoke a joint, lose your license." The next anti-cannabis initiative was "smoke a joint, lose your car" which called for impounding cars from people who committed misdemeanor drug offenses.