The changing economic landscape places great stress on the tax legislative process. This stress is magnified by flaws in existing statutes, and by taxpayer attempts to exploit those flaws. There are no statutory rules governing hundreds of billions of dollars of annual transactions. Much of this void is filled in (imperfectly) by Treasury regulations. This practicum will take a close look at one or two issues raised by one proposed Treasury regulation. We will look at the relevant literature, talk to stakeholders, and (possibly) and in our individual names, provide public comments and testimony on the regulation. Since the primary output will be a public (and therefore published in the leading tax journal, Tax Notes) comment, the course will offer Professional Writing (PW) credit. Students with a research interest in this area that is aligned with the project can with permission of the professor write a paper that receives Research (R) credit. After the term begins, students accepted into the course can transfer from the PW section (01) to the R section (02) with consent of the instructor. Elements used in grading: Class Participation, Written Assignments or Research Paper. Consent Application: To apply for this course, students must complete and e-mail the Consent Application Form available on the SLS Registrar's Office website (see Registration and Selection of Classes for Stanford Law Students) to the instructors. See Consent Application Form for submission deadline.