If you have already identified a statute and are looking for related regulations, use the following tools:
Parallel Table of Authorities and Rules. This table cross references each regulation in the C.F.R. to its enabling legislation in the U.S. Code. The Parallel Table of Authorities is available via the Legal Information Institute (LII) and GPO's FDSys.
Annotations in the U.S. Code
If you are looking for regulations on a particular topic, try the following strategies:
Keyword searching in the C.F.R. The C.F.R. is accessible via several electronic sources.
Use the C.F.R. Index
U.S. Government Agency Websites If you can determine which agency regulates your issues, consult their website.