Q. How do I cite HIPAA in MLA

According to MLA (7th ed.), when citing a legal act, you should include as much of the folowing as possible: "the name of the act, its Public Law number, its Statutes at Large volume number and its medium of publication. Use the abbreviations Pub. L. for Public Law and Stat. for Statues at Large" (p. 205-206).

Following an example given in MLA as a model, your citatoin for HIPAA might look something like this:

The Health Insurance Portability and Accountability Act of 1996. Pub. L. 104-191. Stat. 1936. Web. 11 Aug. 2014.

This example assumes that you have retrived the web version of the Act. Note, also, that the citation ends with the date that you consulted the act.