Grass & Weed Mowing Description/Schedule of Service You can request grass and weed mowing services by calling the Mayor's Citywide Call Center at 311 or completing a service request online using the District government's Service Request Center. Determine and describe the specific location of the problem (i.e. median strips, gateways, circles around monuments). A service request will be put into the tracking system, and the resident will receive a service request number. Scheduled Response Time Investigation — 3 days Resolution — 15 days (April-November) Further Action DDOT's standard is to investigate reports within 3 business days and resolve problems within 15 business days. Call the Mayor's Hotline at (202) 727-2980 if the problem hasn't been resolved by the specified date of completion. Please reference your service request number.