If the NCL Online Catalog shows that a material is in the closed stacks, users with an NCL Library Card can submit an online retrieval request, whether inside or outside the library. The item will be available at the Circulation Desk only on the day of the request. Please note the allowed retrieval times for the following two situations:

(1) For books kept in “Closed Stacks” (Chinese indicated as [典藏書庫],[法律中文書庫],[參庫中文],[參庫西文])，online retrieval request could be done from 00:00 until 30 minutes before the associated reading area is closed for the day. Average waiting time for the requested item is 20 minutes.

(2) For books stored in the "Remote Repository", library staff make a maximum of seven trips per day to retrieve items. The departure times for these trips are 9:30, 10:30, 11:30, 12:30, 13:30, 14:30, and 16:00. The waiting time for retrieval can range from 50 minutes (if the request is made right before the staff leaves) to 1 hour and 50 minutes (if the request is made just after the staff has already left, requiring the user to wait until the next trip).

A user may submit up to five retrieval requests at a time for these situations. After receiving the requested items, they can submit up to five additional requests for books in the same holding category.

If the required books are on the open shelves, users may help themselves to retrieve them.

For preservation and conservation reason, as a principle, duplications of rare book pages are only allowed to do from microfilms or reprints. For special reason that has been approved by the Director of the Special Collections Division, reproduction from originals is restricted within less than 10 pages. 

Charges for reproductions: 

(1) Copy from books: NT$2 per page. Users need to purchase pre-paid copy card and do copy by himself/ herself.

(2) Print out from microfilm by printer: NT$1 per page.

As the only legal depository library in Taiwan, the National Central Library has a mission to preserve all deposited materials for both current and future generations. Therefore, all materials and books are available for in-library use only. The library provides copiers and scanners for users to duplicate the pages they need. However, the Copyright Law of Taiwan (R.O.C.) governs the reproduction of copyrighted materials, and users are responsible for any potential infringement.