The general reading function is free, and there is no charge for those with borrowing function, but a deposit of 100 is required.
There are also more demanding functions such as reference reading and reference borrowing;
After that, you can read in different reading rooms, or look for books of interest in the lending library to continue reading;
As for the requirements for obtaining a permit, there is no household registration restriction, as long as you are a China citizen or a foreigner with a passport.
After entering the museum, there is a registration desk in the lobby on the first floor. Just bring the corresponding documents to handle it.