Hypothesis 2. Consumers with disabilities and co-occurring SUD receiving IPS when compared to the comparison group will 1.) be more successful in achieving their employment goals as indicated by the ratio of hours worked to desired hours worked; 2.) become competitively employed sooner; 3.) earn higher wages, 4.) have greater job satisfaction, 5.) have greater economic satisfaction; 6.) have greater life satisfaction, 7.) have greater self-esteem, and 8.) have fewer days of using substances during follow-up points.