Regulatory · Rectangle · California MUTCD
R104A(CA) Hazardous Material Prohibited
R104A(CA) Hazardous Material Prohibited sign from the California MUTCD: 4 standard sizes (18" × 12", 24" × 18", 30" × 20", and 48" × 30"), with letter heights, border widths, and colors.
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Standard sizes
| Size | Road type | Border | Corner radius | LettersHAZARDOUS MATERIAL PROHIBITED |
|---|---|---|---|---|
| 18" × 12" | — | 1/2" | 1 1/2" | 2"FHWA Series C |
| 24" × 18" | — | 5/8" | 1 1/2" | 3"FHWA Series C |
| 30" × 20" | — | 3/4" | 1 7/8" | 4"FHWA Series C |
| 48" × 30" | — | 1 1/4" | 3" | 5"FHWA Series D |
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Colors
- Legend
- Black
- Background
- White
- Border
- Black
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Standard reference
- Caltrans sign specification R104A(CA) dated 1/31/86 (18x12 in)
- Caltrans sign specification R104A(CA) dated 1/31/86 (24x18 in)
- Caltrans sign specification R104A(CA) dated 1/31/86 (30x20 in)
- Caltrans sign specification R104A(CA) dated 1/31/86 (48x30 in)
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