Millions of workers do not have standard work arrangements-permanent jobs with a traditional employer-employee relationship. Rather, they are in temporary or other non-standard employment arrangements where they may not receive retirement and health benefits, or safeguards such as job-protected leave under the Family Medical Leave Act, even if they have a traditional employer-employee relationship. These non-standard arrangements are sometimes referred to as "contingent" work. To collect information about contingent workers, the Department of Labor's Bureau of Labor Statistics has previously augmented the labor force data included in its monthly Current Population Survey with the Contingent Work Supplement. While a comprehensive source of data on contingent workers, the bureau has not conducted this supplement since 2005.