LCA Database Instructions: Enter LCA Case Number in this format: I-123-12345-123456. Click Search to retrieve all details about the Labor Condition Application, including employer name, job title, salary, work-site location, case status, and more. LCA is a mandatory step in H-1B applications. Prospective employers must obtain LCA approval from the Department of Labor before they can hire foreign workers in H-1B, H-1B1 or E3 status.