To locate a standard or code that you need, follow this progression:
Search the Libraries catalog using the keywords you're sure of. It helps to know the full name of the organization that publishes what you need (examples: American Concrete Institute, National Fire Protection Association).
Ask your subject librarian for assistance in searching. You will learn a lot about best search practices! and get what you need--Win/Win.
The latest codes are located in the Reference Section and are for library use only. Look for earlier editions in the Lower Level book stacks--these can be checked out. Check the library catalog for availability.
International Building Code 2021
ARCH REF K3538 .A15 I5
CDCL K3538 .A15 I54 2021
International Code Council Performance Code for Buildings & Facilities 2015