This is dry stuff, but maybe not if you are a party to a case and federal regulations rule. But how do you find the CFR Appendices online? See the Ross-Blakely Law Library blog post on Hidden Appendices and Supplements, for a handy research tip on searching CFR at GPO Access.
Thanks also to Tom Mighell for his Inter Alia Blawg of the Day service (priceless!), where I found this link and many others – fun ones too.