State Requirement Language Reference Page #
MUTCD (FEDERAL MANUAL) 18" "The STOP/SLOW paddle (R1-1 and W20-8) shall have an octagonal shape on a rigid handle. When used at night, the STOP/SLOW paddle shall be retroreflectorized." The tables on the right have sizes for these. MUTCD 11th Edition - 2023 783
Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Alabama 24''   2025 ALDOT Standard and Special Drawings Index Sheets:
(74000 - 74007)
Traffic Control Devices For Construction Work Zones
Alaska A) 18''

B) 24"
A) "STOP/SLOW paddles (W23-100) shall be at least 18 inches wide with letters 6 inches high for local roads with speed limits less than or equal to 25 mph"

B) "... and shall be 24 inches wide with letters 8 inch high for all other roads"
https://dot.alaska.gov/stwddes/dcstraffic/assets/pdf/atm/current/2016atms_inc.pdf 145
Arizona 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Arkansas 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
California A) 18''

B) 24"
A) "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red or fluorescent red background. The SLOW (W20-8) face shall have black letters and a black border on an orange or fluorescent orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized."

B) " The 24 x 24 inch size of the STOP/SLOW paddle may be used where greater emphasis is needed and speeds are 30 mph or more."
https://dot.ca.gov/-/media/dot-media/programs/safety-programs/documents/ca-mutcd/rev8/camutcd2014-part6e-rev8-a11y.pdf 1056
Colorado 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Connecticut 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Delaware 24" "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 24 inches wide with letters at least 8 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized" https://regulations.delaware.gov/register/may2018/final/MUTCDPart6TemporaryTrafficControl.pdf?cache=1737390200217 Page 6E-2
Florida 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Georgia 18" MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
"They shall use a Stop/Slow paddle meeting the requirements of the MUTCD (6E.03) for controlling traffic. The Stop/Slow paddles shall have a shaft length of seven feet (≥ 7’) minimum." https://www.dot.ga.gov/PartnerSmart/Business/Source/special_provisions/shelf/sp150.pdf 45
Hawaii 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Idaho 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Illinois 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Indiana 18" "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized." Microsoft Word - TOC & Intro _9.12 Rev Clean_.doc 576
Iowa 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Kansas 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Kentucky 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Louisiana 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Maine 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Maryland 24" "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 5 feet in height measured from the bottom of the paddle to the ground. The sign face shall be at least 24 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized" Microsoft Word - Part 6A-6E.docx 677
Massachusetts 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Michigan 18" "The STOP/SLOW (R1-1a) paddle shall have an octagonal shape on a rigid handle. STOP/SLOW (R1-1a) paddles shall be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW (R1-1a) paddle shall be retrorefl ectorized. The STOP/SLOW (R1-1a) paddle shall be placed on a rigid staff that is
tall enough (minimum 72 inches to the bottom of the sign) that when the end of the staff is resting on the ground, the message is high enough to be seen by approaching or stopped traffi c. "
https://mdotjboss.state.mi.us/TSSD/getCategoryDocuments.htm?categoryPrjNumbers=1403854,1403855&category=MMUTCD Manual Part 6 (page 566)
Minnesota 18" "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8M) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized." https://dot.state.mn.us/trafficeng/publ/mutcd/index.html  Part 6 (A-J): Temporary Traffic Control (PDF)
Page 6E-1
Mississippi 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
           
Missouri 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Montana 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Nebraska 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
New Hampshire 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
New Jersey 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
New Mexico 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
New York 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Nevada 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
North Carolina 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
North Dakota 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Ohio 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Oklahoma 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Oregon A) 18''

B) 24"
A) "Flaggers shall use a minimum 18” x 18” octagon-shaped retro reflective STOP/SLOW paddle. The paddle shall be made of a rigid material and the full face of the STOP and the SLOW sides shall be visible and legible at all times when the paddle is in use."

B) "A 24” x 24” paddle is recommended on high-speed roadways or in other situations where increased visibility is needed."
Oregon Temporary Traffic Control Handbook, 2011 Edition 25
Pennsylvania 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Rhode Island 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
South Carolina 24" "The STOP/SLOW paddle is the main TCD for a Flagger. The octagonal shape sign made of rigid material should be at least 24" x 24" with 8" high letters and should be mounted on a rigid handle at least 7' long.

A flashing STOP/SLOW paddle may be used. If a flashing STOP/SLOW paddle is used, it shall comply with the requirements of Section 6E.03 of the MUTCD, latest edition."
Microsoft Word - Flagger-HB-6-17-2021.docx 10
South Dakota 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Tennesse 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Texas A) 18''

B) 24"
A) "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall
be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters
and a white border on a red background. The SLOW (CW20-8) face shall have black letters and a black
border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized."

B)"STOP/SLOW paddles should be 24” wide with letters 8” high when used on roadways with higher
speeds or traffic volumes."
Texas MUTCD 588
Utah 18" The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 18 inches wide with letters at least 6 inches high. The STOP (R1-1) face shall have white letters and a white border on a red background. The SLOW (W20-8) face shall have black letters and a black border on an orange background. When used at night, the STOP/SLOW paddle shall be retroreflectorized." 2009 Utah MUTCD 3-30-12.pdf - Google Drive 566
Vermont 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Virginia 24" "The STOP/SLOW paddle shall have an octagonal shape on a rigid handle. STOP/SLOW paddles shall be at least 24 inches wide with letters at least 8 inches high. The STOP (R1-1) face shall have white letters and border on a red background. The SLOW (W20-8 (V)) face shall have black letters and a black border on a fluorescent orange background. Reflective sheeting shall be in compliance with Section 247 of the Road and Bridge Specifications."

"The optimum method of displaying a STOP or SLOW message is to place the STOP/SLOW paddle on a rigid staff, with a minimum of 5 feet from the bottom of the sign paddle to the top of the roadway elevation, in order to display a STOP or SLOW message that is stable and high enough to be seen by approaching or stopped traffic."
Virginia Work Area Protection Manual Page 6E-2
Washington State 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
West Virginia 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Winsconsin 18'' MUTCD (see figure and tables on the right) MUTCD 11th Edition - 2023 Table 6G-1-page 796
Table 6H-1 -page 804
Figure 6D-1- page 784
Wyoming 18" "Due to wind loading, flagger paddles are a minimum of 5 feet tall and the signs are a minimum of 18 inches wide. " Traffic Control for Roadway Work Operations 2011.pdf 17