Covid-19: For updates and resources, head to UT's Protect Texas Together site.
Once you have found relevant regulations in the CFR, you may wish to understand why the regulation appears the way that it does. Compiling a regulatory history may help. That is, just as one can turn to legislative history as a possible means for understanding legislative intent as a tool in statutory interpretation, so can a researcher try to piece together an agency's intent.
Steps (working backward in time):