Movement Prohibition, Part-Time (3 lines)
- Category
- Regulatory
- Type
- Movement / lane control
- Shape
- Rectangle
- Colors
- Black / Red / White
- SHS release
- 2.0
- Federal status
- Current
What it means
Prohibits the movement, road-user activity, or vehicle operation identified by the “Movement Prohibition, Part-Time” legend or symbol.
What the driver should do
Do not make the prohibited movement or perform the prohibited activity while the restriction applies.
Typical placement / use
Used at the point or approach where the indicated movement or activity is prohibited.
FHWA status note
New Sign
50-State Standards Context
Federal sign R3-1h is part of the nationwide standardized study baseline. States may use the national MUTCD directly, supplement it, or use a state MUTCD. This does not mean every sign is installed everywhere, and state-specific codes, aliases, or variants are not inferred without independent verification.
State implementation model cross-checked in Gate 2 on June 4, 2026. Each state's official source controls any sign-specific code, alias, variant, or usage claim. Delaware was checked again on September 7, 2026 and its 2026 MUTCD remained marked pending approval.