You will need to provide the receipt number that is printed on your approved Petition for a Nonimmigrant Worker, Form I-129, or Notice of Action, Form I-797, to schedule an interview.

After USCIS approves the Petition for a Nonimmigrant Worker (Form I-129), you may apply for a visa. There are several steps in the visa application process.

Cascading dropdown list is same as Temporary Employment & Business Visa