I'm about to be a junior, and I want to take an examination of civil servants in the IRS. It seems that I can catch up with the opportunity of national examination, but the specific content is not clear. I hope I can get guidance. Junior year can't get into the civil service.

Because it takes half a year from the national examination to the entry, and you will be a junior in the next semester after half a year. At that time, you had not graduated, and you could not provide a diploma. Naturally, you can't enroll or transfer.

The earliest civil service exam I can take is the civil service exam at the end of last semester in my senior year.