Although much is known about how to help welfare recipients find jobs, little is known about how to help them and other low-wage workers keep jobs or advance in the labor market. This report presents information on the effectiveness of a program in South Carolina that aimed to help former welfare recipients obtain jobs, work more steadily, and move up in the labor market. The program was run as part of the Employment Retention and Advancement (ERA) project, which is testing 15 programs across the country. The ERA project was conceived by the U.S. Department of Health and Human Services (HHS); it is being conducted by MDRC under contract to HHS, with additional funding from the U.S. Department of Labor (DOL). The following are appended: (1) Supplementary Table for Chapter 1; (2) Notes for Tables and Figures Displaying Results Calculated with Administrative Records Data; (3) Supplementary Materials from the South Carolina ERA Program; (4) Notes for Tables and Figures Displaying Impacts Calculated with Responses to the ERA 12-Month Survey; (5) Supplementary Tables for Chapter 4; and (6) South Carolina ERA 12-Month Survey Response Analysis.