On the U.S. Code and the CFR they put “Title” on the spine – is Title like a chapter?
In this case, “Title” is means “subject heading”. For example, Title 20 of the U.S. Code is Education. A single Title often spans more than a single volume. In fact, sometimes there’s been so much law on a subject that it has a Title and an Appendix, like Title 26/Internal Revenue Code and Title 26a/Internal Revenue Code (Appendix). In the CFR Titles are also used, but there’s no guaranteed correlation between the U.S. Code Title number for a subject and its CFR Title number. Continuing with Title 20, which in the U.S. Code is Education, in the CFR it’s Employees’ Benefits.