Alternate Side Violation

An alternate side violation is issued when a vehicle is parked on a street during posted alternate side parking (ASP) hours, which exist to allow street sweepers to clean the curb lane. NYC enforces alternate side rules Monday through Friday (and sometimes Saturday) in most neighborhoods, with hours varying by block — typically 90-minute windows like "No Parking 8:30–10 AM Mon & Thu."

The base fine for alternate side violations is $65 (violation code 21). While this is one of the lower fine amounts, alternate side tickets are among the most frequently issued in NYC, generating hundreds of millions in annual revenue. ASP is suspended on major holidays and during weather emergencies — but the schedule is complex and frequently misunderstood.

For fleet operators, alternate side violations are a sign that vehicles are being parked on the street overnight or during business hours without adequate awareness of local ASP schedules. Clear Plates detects alternate side violations and helps you identify which parking locations are generating repeat code-21 tickets so you can find better overnight or daytime parking solutions.