This report presents results from the 2013 National Survey on Drug Use and Health (NSDUH). The report includes national estimates of rates of initiation and use of illicit drugs (e.g., marijuana, cocaine, heroin, hallucinogens, inhalants, and the nonmedical use of prescription-type pain relievers, tranquilizers, stimulants, and sedatives), alcohol, and tobacco products and rates of driving under the influence of drugs or alcohol. The report also covers substance use treatment need/receipt and youth risk and prevention measures. Results are provided for age group, gender, pregnancy status, race/ethnicity, education level, employment status, geographic area, parole/probation status. Comparisons are made between 2013 and 2002 to 2012.