In most cases, the process begins when the employer obtains an approved Application for Permanent Labor Certification from the U.S. Department of Labor (DOL). No need to call it out in cover letter?First, employers must seek certification through the US Department of Labor. Below you will find a link to documents and forms. Upon approval of the petition, the prospective employee may apply for admission to the United. There are several government agencies involved with granting permission for foreign workers to work in the United States. The H-1B non-immigrant visa is an employment-based visa category intended for temporary employment in the US. Once the employer has obtained the necessary documentation, they can submit the visa application to USCIS. You will use USCIS Form I765: Application for Employment Authorization, to apply for a work permit. Form I-765 is pretty simple.