Calling all trivia fans! Don’t miss out on a chance to show off your SALT knowledge!

We will award prizes for the smartest (and fastest) participants.

This week’s question: Which year did the U.S. Congressional Special Subcommittee on State Taxation of Interstate Commerce release the final series of its four-volume study, referred to as the Willis Commission Report, on issues pertaining to multistate taxation?

E-mail your response to

The prize for the first response to today’s question is a $25 UBER Eats gift card.

Answers will be posted on Saturdays in our SALT Weekly Digest. Be sure to check back then!