WESTAR-WRAP held its Spring Business meeting in Riverside, California this year. Thank you to Michael Benjamin and the staff at the California Air Resources Board for hosting us and for the tour of the Mobile Sources Testing Lab at the Mary D. Nichols Campus. Thanks to all of the speakers for the thought-provoking presentations and all of the participants for the questions asked and information shared. If you would like to revisit any part of the meeting you can use the agenda with links to the presentations, or rewatch the recorded sessions below.