Labor Certification is a process used in the United States to ensure that there are no qualified American workers available for a specific job before hiring a foreign worker. This certification is typically required for certain employment-based visas, such as the EB-2 and EB-3 categories. Employers must demonstrate that they have made efforts to recruit U.S. workers and that hiring a foreign worker will not negatively impact wages or working conditions. The process involves filing a request with the U.S. Department of Labor (DOL), which reviews the application and conducts a labor market test. If approved, the employer can then proceed with the visa application for the foreign worker, ensuring compliance with U.S. immigration laws.