Employment-based visas are permits that allow foreign nationals to work in a country, typically issued by the government of that country. These visas are often categorized based on the skill level of the job, the qualifications of the worker, and the needs of the labor market. Common types include H-1B for specialty occupations and L-1 for intra-company transferees. To obtain an employment-based visa, employers usually need to demonstrate that there are no qualified local candidates for the position. The process often involves submitting a petition to the relevant immigration authority, such as the U.S. Citizenship and Immigration Services (USCIS) in the United States.