Street Signs Description/Schedule of Service You can request street sign 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. Identify the specific location (i.e. address, intersection) and describe the specific message of the sign and whether a signpost is also needed. Scheduled Response Time STOP sign replacement — 24 hours Traffic control sign replacement — 35 days Parking sign replacement — 60 days Street name sign replacement — 45 days *NOTE: Requests for "new" traffic control signs require investigation, determination, rulemaking, and if approved, publication in the DC Register.  This process could take 4-6 months to complete. Further Action DDOT's standard is to investigate and respond to sign requests within the timeframes as indicated.  Call the Mayor's Hotline at (202) 727-2980 if the problem hasn't been resolved by the specified time of completion. Reference your service request number.