An amendment to provide grants to states that implement drug enforcement programs, but only if the state program requires the suspension or revocation of driver's licenses of persons convicted of drug-related criminal offenses. To qualify for the grants, states would be required to impose suspensions of at least six months for a first conviction and at least one year for repeat convictions within a five-year period. States would also be required to provide for issuance of restricted driver's licenses (under terms and conditions set by the state) to persons whose regular licenses have been suspended or revoked. Fianlly, the substitute authorizes $125 million over three years for these grants.