"National, non-fixed small license": This phrase needs to be understood separately: "national," "non-fixed," and "small license" (generally referring to local licenses). A deeper analysis reveals that a "local license" refers specifically to Sichuan Province. How can Sichuan Province obtain a national license that is also non-fixed? The response from the Department of Industry and Information Technology is correct, as it exceeds their authority. Only the Ministry of Industry and Information Technology can issue a national, non-fixed license, which would be a larger one. As a Class A operating license, this essentially involves using a handheld radio and a vehicle-mounted radio. Currently, when applying for a small license, your fixed address will be recorded, and if you have a vehicle, the license plate number will also be included. Driving across the country with these licenses should not pose any problems, of course, you must still comply with the relevant regulations regarding wireless radio management in your area, which is also covered during the exam preparation. Based on everyone's experience, as long as you use a handheld or vehicle-mounted radio across provincial boundaries, and you have both an operating license and a license, there should be no problems. However, this is not absolute.