Entering the U.S. through employment can be divided into two sections - non-immigrant and immigrant. A non-immigrant employment-based visa will allow a person to work in the U.S., usually for a limited period of time. An immigrant employment-based visa will allow a person to live and work in the U.S. permanently through acquisition of Permanent Resident
Status, or "green card". The categories are as follows:

Non - Immigrant Visa

• B-1 - Business Visitor Visa
• E-1 - Treaty Trader Visa
• E-2 - Treaty Investor Visa
• H-1B - Specialty Occupation (Professional) Visa
• H-2A - Seasonal Agricultural Visa
• J-1 - Exchange Visitor Visa
• L-1A - Intracompany Transferee Visa for Managerial Positions
• L-1B - Intracompany Transferee Visa for Specialized Knowledge Positions
• O-1 - Extraordinary Ability Visa
• P-1 - Athletes and Group Entertainer Visa
• R-1 - Religious Worker Visa
• TN - North American Free Trade Agreement Visa

Immigrant Visa

• EB-1 - Foreign Nationals of Extraordinary Ability
• EB-2 - Workers with Advanced Degrees or Exceptional Ability
• EB-3 - Skilled Workers and Professionals
• EB-4 - Special Immigrant for Religious Workers
• EB-5 - Investor/Employment Creation Visa
• DV-1 - Diversity Lottery
• PERM
• National Interest Waiver