| Load Limit | Frost Zone | Starting Date | Ending Date |
|---|---|---|---|
Winter Load Increases (WLI) |
North | Dec 14, 2017 | Mar 22, 2018 |
| North-Central | Dec 18, 2017 | Mar 21, 2018 | |
| Central | Dec 30, 2017 | Mar 6, 2018 | |
| Metro | Dec 30, 2017 | Mar 5, 2018 | |
| South | Dec 30, 2017 | Mar 5, 2018 | |
| Southeast | Dec 30, 2017 | Mar 5, 2018 | |
Spring Load Restrictions (SLR) |
North | Mar 22, 2018 | May 17, 2018 |
| North-Central | Mar 21, 2018 | May 16, 2018 | |
| Central | Mar 16, 2018 | May 11, 2018 | |
| Metro | Mar 5, 2018 | Apr 30, 2018 | |
| South | Mar 6, 2018 | May 1, 2018 | |
| Southeast | Mar 5, 2018 | Apr 30, 2018 | |
Middle-Range Overweight Permits |
North | May 17, 2018 | |
| North-Central | May 16, 2018 | ||
| Central | May 11, 2018 | ||
| Metro | Apr 30, 2018 | ||
| South | May 1, 2018 | ||
| Southeast | Apr 30, 2018 | ||
Full-Summer Overweight Permits |
North | ||
| North-Central | |||
| Central | |||
| Metro | May 21, 2018 | ||
| South | May 22, 2018 | ||
| Southeast | May 21, 2018 |
All starting and ending dates begin at 12:01 a.m. and are preceded by at least a 3-day advance notice. Notice is available on this website, or from a recording at 651-366-5400 or toll free at 1-800-723-6543, or automatically by subscribing to receive e-mail updates.