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Official United States Carpool / Preferential Lane Sign Road Sign

Federal MUTCD Specifications

Standard Code
R3-11
Sign Category
Regulatory
Shape
Vertical Rectangle
Color Scheme
White with Diamond & Carpool Regulations

Regulatory Road Sign (R3-11)

Carpool / Preferential Lane Sign Sign Meaning & Driving Rules

Comprehensive regulatory sign detailing occupancy requirements, times, and vehicle exemptions.

Required Driver Action & Right-of-Way Protocol

Ensure you meet legal occupancy criteria before entering the diamond-marked lane.

Detailed Overview & Purpose

The Carpool / Preferential Lane sign (R3-11) outlines complete operational rules for managed lanes on major freeway corridors.

Key Standard & Origin: Motorcycles and mass transit buses are permitted in all federally funded HOV lanes regardless of occupancy.

Where You'll Find This Sign

Freeway on-ramp HOV bypasses and mainline carpool corridors.

Common Driver Mistakes to Avoid

Thinking motorcycles cannot use HOV lanes; federal law explicitly allows motorcycles in HOV lanes for safety.

How This Sign Appears on the DMV Knowledge & Road Test

Tests exemptions to HOV rules (motorcycles, buses, clean air vehicles).

Legal Penalties and Moving Violations

HOV violations are strictly enforced with automated cameras and motorcycle patrol officers.

DMV Knowledge Check

When you encounter the official Carpool / Preferential Lane Sign (R3-11) on a roadway, what is your legal duty?

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Take full 2026 practice tests covering mandatory road signs, traffic laws, and state-specific driving rules.

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