Maintenance Schedule
NLAD maintenance takes place on a regular basis.
- New versions of the system are deployed to make system changes and upgrades. This usually does not require NLAD to be taken offline.
- NLAD is taken offline for scheduled system maintenance, typically completed on the third or fourth Saturday of each month.
The table below outlines the dates for 2026 NLAD maintenance.
To find out if NLAD will be down during the maintenance, refer to the “System outage?” column to find out if “Yes,” the system will be down and the time during which the system will be down.
For more information regarding releases and upcoming NLAD changes, subscribe to the NLAD Bulletin email list. You can also log into NLAD to download descriptions from the NLAD User Guide and API Specifications available under the “Reports and Tools” section.
| Date of Deployment | System outage? If yes, when? | System Affected | Notes |
| January 23 |  Yes, 10 p.m. – 3 a.m. | Production | Monthly Maintenance |
| February 20 |  Yes, 10 p.m. – 3 a.m. | Production | Monthly Maintenance |
| March 20 |  Yes, 10 p.m. – 3 a.m. | Production | Monthly Maintenance |
| April 17 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| May 15 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| June 26 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| July 17 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| August 21 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| September 18 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| October 16 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |
| November 20 |  Yes, 10 p.m. – 6 a.m. |  Production | Monthly Maintenance |
| December 18 |  Yes, 10 p.m. – 3 a.m. |  Production | Monthly Maintenance |