1. Find a regulation.
5. Search for future things affecting the same issues as your regulation (same CFR section)
1. Find a regulation
A. From the CFR
Once you have a section in the CFR located, you need to find where that regulation previously appeared as a final rule in the Federal Register. You need a Federal Register citation.
Look within the CFR's text for "source notes" for the rule. A Federal Register citation will typically appear at the end of larger section, like a Part or a SubPart. Occasionally it may appear after the individual provision. Look for something like "77 FR 58945, Sept. 25, 2012". This tells you the volume (77) and page number (598945) in the Federal Register where the final rule appeared before it was put into the CFR.