701 E. Irving Park Rd., Suite 203
Roselle, IL 60172
phone 847.455.1130
toll free 800.876.3313
fax 847.455.1153
email info@dohrnit.com
Roselle, IL 60172
phone 847.455.1130
toll free 800.876.3313
fax 847.455.1153
email info@dohrnit.com
8:00am to 2:00pm by Appointment OnlyMonday through Friday
The Dohrn Office is open by appointment only for registration or course material pick-up. Please do not come to the office without scheduling an appointment, as the office is not always open.
On the following days, our office will be closed or will have an early closing time.
| Thursday, January 1, 2026 | New Year's Day | Closed |
| Friday, April 3, 2026 | Good Friday | Early Closing Time: 1:00 PM |
| Friday, May 22, 2026 | Early Closing Time: 12:00 PM | |
| Monday, May 25, 2026 | Memorial Day | Closed |
| Friday, July 3, 2026 | Independence Day Observed | Closed |
| Friday, September 4, 2026 | Early Closing Time: 12:00 PM | |
| Monday, September 7, 2026 | Labor Day | Closed |
| Wednesday, November 25, 2026 | Early Closing Time: 12:00 PM | |
| Thursday, November 26, 2026 | Thanksgiving | Closed |
| Friday, November 27, 2026 | Closed | Thursday, December 24, 2026 | Christmas Eve | Closed |
| Friday, December 25, 2026 | Christmas | Closed |
| Thursday, December 31, 2026 | New Year's Eve | Early Closing Time: 12:00 PM |
| Friday, January 1, 2027 | New Year's Day | Closed |
701 E. Irving Park Rd
Suite 203
Roselle, IL 60172