The Container searches in several places to find TLD files—you don’t need to do anything except make sure your TLDs are in one of the right locations.
Directly inside WEB-INF
Directly inside a subdirectory of WEB-INF
Inside the META-INF directory inside a JAR file that’s inside WEB-INF/lib
Inside a sub-directory of META-INF inside a JAR file that’s inside WEB-INF/lib