Is it difficult to get a green card for working in fda?

It's very difficult. It's very difficult to get a green card for working in the fda. Applying for a green card in the United States is a very complicated process, which requires submitting a lot of documents and materials and filling out various forms according to the requirements of the US Immigration Service. First, applicants need to obtain an application form for a US green card, and fill in basic personal information and background information. Secondly, you need to provide detailed work experience and educational background to prove your ability and uniqueness. In addition, you need to provide proof of identity, address where you once lived, tax information, etc. Before submitting the application, you need to pass a physical examination to ensure that your physical condition meets the requirements of the US Immigration Service.