Thursday, Sept. 15, after the close of the CMI Annual Meeting, there will an optional tour.

• 1:30 p.m. at Ames National Laboratory, available to U.S. citizens and some foreign nationals (depends on country of citizenship). Limited parking will be available north of Ames National Laboratory buildings, Lot 28 of Iowa State University, as marked. Signup will be available Wednesday, Sept. 13 at the Ames City Auditorium check-in.