Do Not Pass On Shoulder Signs
The Do Not Pass On Shoulder sign R4-18 MUTCD indicates that drivers are not permitted to use the shoulder of the road to pass other vehicles; this helps to improve safety and reduce the risk of collisions, particularly in areas where the shoulder may be narrow or where vehicles may be parked or stopped.
Do Not Pass On Shoulder Sign Details:
- Sign is manufactured on durable rust-proof .080" aluminum
- Pre-punched 3/8" mounting holes in top and bottom for easy installation.
- Meets M.U.T.C.D. specifications for highway use.
- See in our catalog on page 10.
In Stock - Usually ships same or next business day.
High Intensity Prismatic Reflective on .080" Aluminum:
MATERIAL | SIZE | PRICE PER SIGN | ADD TO CART | Catalog Part # | ||
---|---|---|---|---|---|---|
1 to 4 | 5 to 9 | 10 + | ||||
![]() High Intensity Prismatic | 18" x 24" | $58.19 | $55.28 | $52.37 | R4-18-1824-HIP | |
24" x 30" | $86.90 | $82.56 | $78.21 | R4-18-2430-HIP | ||
36" x 48" | $213.51 | $202.83 | $192.16 | R4-18-3648-HIP |
Full Cube Prismatic Reflective on .080" Aluminum:
MATERIAL | SIZE | PRICE PER SIGN | ADD TO CART | Catalog Part # | ||
---|---|---|---|---|---|---|
1 to 4 | 5 to 9 | 10 + | ||||
![]() Full Cube Prismatic | 18" x 24" | $66.66 | $63.33 | $59.99 | R4-18-1824-UPG | |
24" x 30" | $95.70 | $90.92 | $86.13 | R4-18-2430-UPG | ||
36" x 48" | $238.92 | $226.97 | $215.03 | R4-18-3648-UPG |
Available Reflective Finishes:
High Intensity Prismatic Reflective | Full Cube Prismatic Reflective |
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Sign Posts
Sign Installation Hardware
Other Passing Zone Signs

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Specifications:
Legend: | DO NOT PASS ON SHOULDER |
MUTCD Sign Code #: | R4-18 |
Shape: | Vertical Rectangle |
Color: | BLACK on WHITE |
Available Sizes and Weights: | Size: 18" x 24"; Ship Weight: 3.7 lbs |
Size: 24" x 30"; Ship Weight: 6.2 lbs | |
Size: 36" x 48"; Ship Weight: 14.9 lbs | |
Available Styles: | High Intensity Prismatic Reflective on .080" Aluminum |
Full Cube Prismatic Reflective on .080" Aluminum | |
Full Description: | R4-18 have a white background color. The text and border are black and it is in the shape of a vertical rectangle. |
Mounting Hole Placement: | ![]() |