empty cell
Manual on Uniform Traffic Control Devices (MUTCD) arrows logo
Knowledge bar

MUTCD 11th Edition Known Errors
As of December 20, 2023

The FHWA intends to correct these errors via a future rulemaking action. This list of known errors is provided solely for the information of MUTCD users and does not constitute official changes to the MUTCD at this time.

Part 1

Section 1B.06

  • Paragraph 4. The phrase "futurefor consideration in the next rulemaking" should be changed to "future rulemaking."

Section 1C.02

  • Paragraph 3. Definitions 111, 158, and 159 are out of alphabetical order.

Part 2

Section 2B.10

  • Paragraph 2. Items D and E should be sub-items 1 and 2 of item C.

Section 2B.21

  • Paragraph 7, item E. The spelling “precentile” should be corrected to “percentile."
  • Paragraph 18. The reference to “Traffic Control Device Handbook” should be changed to “ITE Traffic Control Device Handbook - 2nd Edition, 2013”.

Section 2B.27

  • Paragraph 5, first sentence. The word “lane” should have the first letter in upper-case to become “Lane.”

Section 2B.52

  • Paragraph 4. The period at the end of item B should be deleted.

Section 2B.53

  • Paragraph 27. The word “the” between “with” and “those” should be deleted. The period should be moved outside of the parentheses.

Section 2B.59

  • Paragraph 3. The extra parenthesis after the word “green” should be deleted. The parenthesis after the word “STOP” should be deleted.
  • Paragraph 9. The word “STEADY” should be removed from “STOP ON STEADY RED YIELD ON FLASHING RED AFTER STOP.”

Section 2C.12

  • Paragraph 9. The word “Speed” should be added to “Combination Horizontal Alignment/Advisory Exit signs” to read “Combination Horizontal Alignment/Advisory Exit Speed signs.”

Section 2D.08

  • Paragraph 25. The reference to “Section 2D.41” should be changed to “Section 2E.41.”

Section 2D.09

  • Paragraph 5. The reference to “Paragraph 6” should be changed to “Paragraph 7.”

Section 2D.51

  • Paragraphs 3 and 7. The references to sign “D8-1” should be changed to “D8-1 Series” to allow the use of a D8-1a sign as shown in Figure 2D-23.

Section 2D.59

  • Paragraph 10. The word “use” should be changed to “used.”

Figure 2D-2

  • A – Cardinal directions and orientations, notes under the sign on the right. The words “’South’ is a cardinal direction” should be change to “’South’ is a pre-directional designation.”

Table 2D-2

  • Sheet 2 of 2, row 2. The text “, U.S., State,” should be deleted.

Section 2E.15

  • Paragraph 2, sentence 2. There is an extra space before the period which should be deleted.

Section 2E.30

  • Paragraph 2. The word “interchanges” should be changed to “interchange.”

Section 2E.38

  • Paragraph 7. A hyphen should be added between the words “Pull” and “Through” to appear as “Pull-Through.”

Section 2E.51

  • Paragraph 12. All of the letters in “Park – Ride” should be capitalized to appear as “PARK – RIDE.”

Section 2E.54

  • Paragraph 9. The word “describe” should be changed to “described.”

Section 2G.04

  • Paragraph 2, sentence 3. The word “to” between the words “not” and “be” should be deleted.

Section 2G.11

  • Paragraph 3. The word “Advanced” should be changed to “Advance.”

Section 2H.12

  • Paragraph 5. The phrase “Except as provided in Paragraph 6 of this Section” should be deleted.

Section 2H.14

  • Paragraph 8. The second use of the phrase “alternative fuels corridor” between the words “the” and “sign” should be capitalized to appear as “Alternative Fuels Corridor.”

Section 2I.03

  • Between Paragraphs 5 and 6. The header “Guidance” should be deleted.
  • Paragraph 26. The bold font should be removed to indicate an Option statement.

Part 3

Section 3B.01

  • Between Paragraphs 6 and 7. The header “Guidance” should be changed to “Support.”
  • Paragraph 7. The font should not be italicized to indicate a Support statement.
  • Between Paragraphs 8 and 9. The header “Guidance” should be added.

Section 3B.17

  • Paragraph 4. The reference to “Section 6J.02” should be changed to “Section 6J.03.”

Part 4

Figure 4C-7

  • Parentheses below the figure title. “40 MPH” should be changed to “35 MPH.”

Figure 4C-8

  • Parentheses below the figure title. “40 MPH” should be changed to “35 MPH.”

Section 4J.02

  • Paragraph 8. The word “STEADY” should be removed from “STOP ON STEADY RED—YIELD ON FLASHING RED AFTER STOP.”

Section 4U.02

  • Paragraph 2. The numbering for the next paragraph that starts with, “If In-Roadway Warning Lights are used…”, is missing and should be added as “03.” The subsequent paragraphs should be re-numbered as “04” through “15.”

Part 6

Section 6L.05

  • Paragraph 5. “The colors used for legends on portable changeable message signs shall comply with those shown in Table 2A-5.” Table 2A-5 should read Table 2A-2.

Section 6N.04

  • Paragraph 6, first sentence. The word “short-term” should be added between the words “for” and “and mobile” to read “Except for short-term and mobile operations…”

Part 9

Section 9A.01

  • Between Paragraphs 5 and 6. The header “Support” should be deleted.

Section 9C.04

  • Paragraph 4. The word “should” should be changed to “may.”

Section 9D.08

  • Between Paragraphs 12 and 13. The header “Support” should be added.

Section 9D.13

  • Between Paragraphs 8 and 9. The header “Support” should be added.