Driving while your ability is impaired by the combined influence of drugs and/or alcohol is found under vehicle and traffic law section 1192(4-a). If you are convicted of this offense, it is a misdemeanor and your license will be revoked for a minimum of six months. You will be fined up to $1,000 and will be required to pay another $395 or 400 in court surcharges depending on the court of conviction. You also face up to 1 year in jail and/or up to 3 years of probation.  In addition, there is a mandatory DMV Driver Assessment penalty of $750. You must install an ignition interlock device on any vehicle you own or operate for 1 year.