MD SB55

Police officers must document all reasons for a traffic stop on any citation or police report resulting from the stop

Evidence obtained during a traffic stop where the officer failed to identify themselves and provide required information may now be excluded in court proceedings (reversing prior law that prohibited such exclusion)

Multiple minor vehicle violations become secondary enforcement only, meaning officers can only cite them when the driver is already stopped for another suspected violation: unpaid registration fees, expired plates, license plate frame obstructions, expired registration display, littering, single broken headlamp, rear plate light issues, obstructed rearview mirrors, and window tinting violations

Police may not stop vehicles for expired registration until the fourth month after the original expiration date

The secondary enforcement provisions apply retroactively to any proceedings not yet finally adjudicated, with an effective date of October 1, 2026