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Regulatory · Rectangle · MUTCD 11th edition

R14-3 Hazardous Material Prohibition

R14-3 Hazardous Material Prohibition sign from the MUTCD 11th edition: 4 standard sizes (24" × 24", 30" × 30", 36" × 36", and 42" × 42"), with border widths and colors.

Open this sign in the editorStandard sizes
R14-3
Drawn at 30" × 30"

01

Standard sizes

SizeRoad typeBorderCorner radius
24" × 24"—5/8"1 1/2"
30" × 30"Conventional Road, Single LaneConventional Road, Multi-Lane3/4"1 7/8"
36" × 36"Expressway7/8"2 1/4"
42" × 42"—7/8"2 1/4"

02

Colors

Legend
Black
Red
Background
White
Border
Black

03

Standard reference

  • SHS 2024 sheet 2-385 (R14-3, 24 in); MUTCD 11th ed.
  • SHS 2024 sheet 2-385 (R14-3, 30 in); MUTCD 11th ed.
  • SHS 2024 sheet 2-385 (R14-3, 36 in); MUTCD 11th ed.
  • SHS 2024 sheet 2-385 (R14-3, 42 in); MUTCD 11th ed.