Find articles from a variety of sources. Tips: Limit to "Peer-Reviewed Journals" if you need scholarly articles only. Limit to "Available online" if you want articles that are immediately available.
Anything labeled "Secondary Source" will provide background, interpretation, or commentary.
The assignment has three parts, all of which require outside sources:
Strategy tip: it may be simplest to start with #2: a policy or program you know about, then work backward to #1: the problem it addresses.
What is U.S.C. or U.S.C.A.? Example: 42 U.S.C. 1751
What is Pub. L. or P.L.? Example: P.L. 111-296
What is C.F.R.? Example: 7 C.F.R. § 245.6
Try putting the legal citation into WestlawNext to find the original document. Googling will often work too, since these are government documents and therefore widely available free.