Over 30 percent of American workers are engaged in ad-hoc, contract-based employment, known as contingent or precarious labor. In comparison to employees on payroll, these contingent workers take on more risk in terms of both their income and retirement security, and are not covered by basic federal labor protections, such as minimum wage, overtime, and health and safety standards. They are also unlikely to have access to traditional employer-based benefits meant to provide a safety net to American workers.