The GRI series is usually offered in 4 sets of series: 100, 200, 300, and 400.  Each series typically contains 5 modules, covering from 3 to 6 hours of material.

SMAR usually offers 2 of the 4 series each year, however, the availablity of instructors heavily impacts the schedule.  Please be sure to verify your classes and provide currrent contact information when signing up to take a series.  It will aid attempts to contact students should the schedule change.