Subpart F--Traffic Control Devices on Federal-Aid and Other Streets and 
                                Highways

    Source: 48 FR 46776, Oct. 14, 1983, unless otherwise noted.

Sec. 655.601  Purpose.

    To prescribe the policies and procedures of the Federal Highway 
Administration (FHWA) to obtain basic uniformity of traffic control 
devices on all streets and highways in accordance with the following 
references that are approved by the FHWA for application on Federal-aid 
projects:
    (a) Manual on Uniform Traffic Control Devices for Streets and 
Highways (MUTCD), FHWA, 1988, including Revision No. 1 dated January 17, 
1990, Revision No. 2 dated March 17, 1992, Revision No. 3 dated 
September 3, 1993, Errata No. 1 to the 1988 MUTCD Revision 3, dated 
November 1, 1994, Revision No. 4 dated November 1, 1994, Revision No. 4a 
(modified) dated February 19, 1998, Revision No. 5 dated December 24, 
1996, Revision No. 6 dated June 19, 1998, and Revision No. 7 dated 
January 3, 2000. This publication is incorporated by reference in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51 and is on file at the 
Office of the Federal Register, 800 North Capitol Street, NW., Suite 
700, Washington, DC. The 1988 MUTCD, including Revision No. 3 dated 
September 3, 1993, may be purchased from the Superintendent of 
Documents, U.S. Government Printing Office (GPO), P.O. Box 371954, 
Pittsburgh, PA 15250-7954, Stock No. 650-001-00001-0. The amendments to 
the MUTCD titled, ``1988 MUTCD Revision No. 1,'' dated January 17, 1990, 
``1988 MUTCD Revision No. 2,'' dated March 17, 1992, ``1988 MUTCD 
Revision No. 3,'' dated September 3, 1993, ``1988 MUTCD Errata No. 1 to 
Revision No. 3,'' dated November 1, 1994, ``1988 MUTCD Revision No. 4,'' 
dated November 1, 1994, ``1998 MUTCD Revision No. 5,'' dated December 
24, 1996, ``Revision No. 6,'' dated June 19, 1998, and ``Revision No. 
7'' dated January 3, 2000 are available

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from the Federal Highway Administration, Office of Transportation 
Operations, HOTO, 400 Seventh Street, SW., Washington, DC 20590. These 
documents are available for inspection and copying as prescribed in 49 
CFR part 7.
    (b) Standard Alphabets for Highway Signs, FHWA, 1966 Edition, 
Reprinted May 1972. (This publication is incorporated by reference and 
is on file at the Office of the Federal Register in Washington, DC. This 
document is available for inspection and copying as provided in 49 CFR 
part 7, appendix D).
    (c) Guide to Metric Conversion, AASHTO, 1993. This publication is 
incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 CFR 
part 51 and is on file at the Office of the Federal Register, 800 North 
Capitol Street, NW., Suite 700, Washington, DC. This document is 
available for inspection as provided in 49 CFR part 7. It may be 
purchased from the American Association of State Highway and 
Transportation Officials, Suite 249, 444 North Capitol Street, NW., 
Washington, DC 20001.
    (d) Traffic Engineering Metric Conversion Factors, 1993--Addendum to 
the Guide to Metric Conversion, AASHTO, October 1993. This publication 
is incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 
CFR part 51 and is on file at the Office of the Federal Register, 800 
North Capitol Street, NW., Suite 700, Washington, DC. This document is 
available for inspection as provided in 49 CFR part 7. It may be 
purchased from the American Association of State Highway and 
Transportation Officials, Suite 249, 444 North Capitol Street, NW., 
Washington, DC 20001.

[51 FR 16834, May 7, 1986, as amended at 60 FR 18521, Apr. 11, 1995; 61 
FR 29626, June 11, 1996; 62 FR 1373, Jan. 9, 1997; 63 FR 8351, Feb. 19, 
1998; 63 FR 33549, June 19, 1998; 64 FR 33753, June 24, 1999; 65 FR 13, 
Jan. 3, 2000]

Sec. 655.602  Definitions.

    The terms used herein are defined in accordance with definitions and 
usages contained in the MUTCD and 23 U.S.C. 101(a).

Sec. 655.603  Standards.

    (a) National MUTCD. The MUTCD approved by the Federal Highway 
Administrator is the national standard for all traffic control devices 
installed on any street, highway, or bicycle trail open to public travel 
in accordance with 23 U.S.C 109(d) and 402(a). The national MUTCD is 
specifically approved by the FHWA for application on any highway project 
in which Federal highway funds participate and on projects in federally 
administered areas where a Federal department or agency controls the 
highway or supervises the traffic operations.
    (b) State or other Federal MUTCD. (1) Where State or other Federal 
agency MUTCDs or supplements are required, they shall be in substantial 
conformance with the national MUTCD. Changes to the national MUTCD 
issued by the FHWA shall be adopted by the States or other Federal 
agencies within 2 years of issuance. The FHWA Regional Administrator has 
been delegated the authority to approve State MUTCDs and supplements.
    (2) The Direct Federal Program Administrator has been delegated the 
authority to approve other Federal agency MUTCDs with the concurrence of 
the Office of Traffic Operations. States and other Federal agencies are 
encouraged to adopt the national MUTCD as their official Manual on 
Uniform Traffic Control Devices.
    (c) Color specifications. Color determinations and specifications of 
sign and pavement marking materials shall conform to requirements of the 
FHWA Color Tolerance Charts. \2\ An alternate method of determining the 
color of retroreflective sign material is provided in the appendix.
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    \2\ Available for inspection from the Office of Traffic Operations, 
Federal Highway Administration, 400 Seventh Street, SW., Washington, DC 
20590.
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    (d) Compliance--(1) Existing highways. Each State, in cooperation 
with its political subdivisions, and Federal agencies shall have a 
program as required by Highway Safety Program Standard Number 13, 
Traffic Engineering Services (23 CFR 1204.4) which shall include 
provisions for the systematic upgrading of substandard traffic control 
devices and for the installation of needed devices to achieve conformity 
with the MUTCD.

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    (2) New or reconstructed highways. Federal-aid projects for the 
construction, reconstruction, resurfacing, restoration, or 
rehabilitation of streets and highways shall not be opened to the public 
for unrestricted use until all appropriate traffic control devices, 
either temporary or permanent, are installed and functioning properly. 
Both temporary and permanent devices shall conform to the MUTCD.
    (3) Construction area activities. All traffic control devices 
installed in construction areas using Federal-aid funds shall conform to 
the MUTCD. Traffic control plans for handling traffic and pedestrians in 
construction zones and for protection of workers shall conform to the 
requirements of 23 CFR part 630, subpart J, Traffic Safety in Highway 
and Street Work Zones.
    (4) MUTCD changes. The FHWA may establish target dates for achieving 
compliance with changes to specific devices in the MUTCD.
    (e) Specific information signs. Standards for specific information 
signs are contained in the MUTCD.

[48 FR 46776, Oct. 14, 1983, as amended at 51 FR 16834, May 7, 1986]

Sec. 655.604  Achieving basic uniformity.

    (a) Programs. Programs for the orderly and systematic upgrading of 
existing traffic control devices or the installation of needed traffic 
control devices on or off the Federal-aid system should be based on 
inventories made in accordance with 23 CFR 1204.4, Highway Safety 
Program Standards. These inventories provide the information necessary 
for programming traffic control device upgrading projects.
    (b) Inventory. An inventory of all traffic control devices is 
required by Highway Safety Program Standard Number 13, Traffic 
Engineering Services (23 CFR 1204.4). Highway planning and research 
funds and highway related safety grant program funds may be used in 
statewide or systemwide studies or inventories. Also, metropolitan 
planning (PL) funds may be used in urbanized areas provided the activity 
is included in an approved unified work program.

Sec. 655.605  Project procedures.

    (a) Federal-aid highways. Federal-aid projects involving the 
installation of traffic control devices shall follow procedures as 
established in 23 CFR part 630, subpart A, Federal-Aid Programs Approval 
and Project Authorization. Simplified and timesaving procedures are to 
be used to the extent permitted by existing policy.
    (b) Off-system highways. Certain federally funded programs are 
available for installation of traffic control devices on streets and 
highways that are not on the Federal-aid system. The procedures used in 
these programs may vary from project to project but, essentially, the 
guidelines set forth herein should be used.

Sec. 655.606  Higher cost materials.

    The use of signing, pavement marking, and signal materials (or 
equipment) having distinctive performance characteristics, but costing 
more than other materials (or equipment) commonly used may be approved 
by the FHWA Division Administrator when the specific use proposed is 
considered to be in the public interest.

Sec. 655.607  Funding.

    (a) Federal-aid highways. (1) Funds apportioned or allocated under 
23 U.S.C. 104(b) are eligible to participate in projects to install 
traffic control devices in accordance with the MUTCD on newly 
constructed, reconstructed, resurfaced, restored, or rehabilitated 
highways, or on existing highways when this work is classified as 
construction in accordance with 23 U.S.C. 101(a). Federal-aid highway 
funds for eligible pavement markings and traffic control signalization 
may amount to 100 percent of the construction cost. Federal-aid highway 
funds apportioned or allocated under other sections of 23 U.S.C. are 
eligible for participation in improvements conforming to the MUTCD in 
accordance with the provisions of applicable program regulations and 
directives.
    (2) Traffic control devices are eligible, in keeping with paragraph 
(a)(1) of this section, provided that the work is classified as 
construction in accordance with 23 U.S.C. 101(a) and the State or local 
agency has a policy acceptable

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to the FHWA Division Administrator for selecting traffic control devices 
material or equipment based on items such as cost, traffic volumes, 
safety, and expected service life. The State's policy should provide for 
cost-effective selection of materials which will provide for substantial 
service life taking into account expected and necessary routine 
maintenance. For these purposes, effectiveness would normally be 
measured in terms of durability, service life and/or performance of the 
material. Specific projects including material or equipment selection 
shall be developed in accordance with this policy. Proposed work may be 
approved on a project-by-project basis when the work is (i) clearly 
warranted, (ii) on a Federal-aid system, (iii) clearly identified by 
site, (iv) substantial in nature, and (v) of sufficient magnitude at any 
given location to warrant Federal-aid participation as a construction 
item.
    (3) The method of accomplishing the work will be in accordance with 
23 CFR part 635, subpart A, Contract Procedures.
    (b) Off-system highways. Certain Federal-aid highway funds are 
eligible to participate in traffic control device improvement projects 
on off-system highways. In addition, Federal-aid highway funds 
apportioned or allocated in 23 U.S.C. are eligible for the installation 
of traffic control devices on any public road not on the Federal-aid 
system when the installation is directly related to a traffic 
improvement project on a Federal-aid system route.

 Appendix to Subpart F of Part 655--Alternate Method of Determining the 
                 Color of Retroreflective Sign Materials

    1. The FHWA Color Tolerance Charts provide that conventional color 
measuring instruments such as spectrophotometers and tristimulus 
photoelectric colorimeters should not be used for measurement of 
retroreflective material colors and that such materials should be 
evaluated visually using the Color Tolerance Charts and paying strict 
attention to prescribed illumination and viewing conditions.
    2. As an alternate to visual testing, the diffuse day color of 
retroreflective sign material may be determined in accordance with ASTM 
E 97, ``Standard Method of Test for 45-Degree, 0-Degree Directional 
Reflectance of Opaque Specimens by Filter Photometry.'' Geometric 
characteristics must be confined to illumination incident within 10 
degrees of, and centered about, a direction of 45 degrees from the 
perpendicular to the test surface; viewing is within 15 degrees of, and 
centered about, the perpendicular to the test surface. Conditions of 
illumination and observation must not be interchanged.
    3. Standards to be used for reference are the Munsell Papers 
designated in Table 1 or Table II, attached. The papers must be recently 
calibrated on a spectrophotometer. Acceptable test instruments are:
    a. Gardner Multipurpose Reflectometer or Model XL 20 Color 
Difference Meter,
    b. Gardner Model Ac-2a or XL 30 Color Difference Meter,
    c. Meeco Model V Colormaster,
    d. Hunter lab D25 Color Difference Meter, or
    e. Approved equal.
    4. Average performance sheeting is identified as Types I and II 
sheeting and high performance sheeting is identified as Types III and IV 
sheeting in Standard Specifications for Construction of Roads and 
Bridges on Federal Highway Projects \3\ (FP-79, Section 633).
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    \3\ This document is available for inspection and copying as 
prescribed in 49 CFR part 7, appendix D.

                                  Table I--Color Specification Limits and Reference Standards, Types I and II Sheeting
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                                                    Chromaticity coordinates \1\ (corner points)             Reflectance
                                          ---------------------------------------------------------------- limits (percent
                  Color                           1               2               3               4              Y) Y          Reference \3\ standard
                                          ---------------------------------------------------------------------------------       (munsell papers)
                                              x       y       x       y       x       y       x       y    Minium  Maximum
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White \2\................................    .305    .290    .350    .342    .321    .361    .276    .308      35       --  6.3Gy 6.77/0.8.
Red......................................    .602    .317    .664    .336    .644    .356    .575    .356       8       12  8.2R 3.78/14.0.
Orange...................................    .535    .375    .607    .393    .582    .417    .535    .399      18       30  2.5YR 5.5/14.0
Brown....................................    .445    .353    .604    .396    .556    .443    .445    .386       4        9  5.OYR 3/6.
Yellow...................................    .482    .450    .532    .465    .505    .494    .475    .485      29       45  1.25Y 6/12.

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Green....................................    .130    .369    .180    .391    .155    .460    .107    .439     3.5        9  0.65BG 2.84/8.45.
Blue.....................................    .147    .075    .176    .091    .176    .151    .106    .113     1.0        4  5 8PB 1.32/6.8.
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\1\ The four pairs of chromaticity coordinates determine the acceptable color in terms of the CIE 1931 standard colorimetric system measured with
  standard illumination source C.
\2\ Silver white is an acceptable color designation.
\3\ Available from Munsell Color Company. 2441 Calvert Street, Baltimore. Maryland 21218.


                                 Table II--Color Specification Limits and Reference Standards, Types III and IV Sheeting
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                                                     Chromaticity Coordinates \1\ (corner points)             Reflectance
                                           ----------------------------------------------------------------     limits
                   Color                           1               2               3               4         (percent Y) Y     Reference \3\ standard
                                           --------------------------------------------------------------------------------       (munsell papers)
                                               x       y       x       y       x       y       x       y     Min.    Max.
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White \2\.................................    .303     287    .368    .353    .340    .380    .274    .316      27  ......  5.0PB 7/1.
Red.......................................    .613    .297    .708    .292    .636    .364    .558    .352     2.5      11  7.5R 3/12.
Orange....................................    .550    .360    .630    .370    .581    .418    .516    .394      14      30  2.5YR 5.5/14.
Yellow....................................    .498    .412    .557    .442    .479    .520    .438    .472      15      40  1.25Y 6/12.
Green.....................................    .030    .380    .166    .346    .286    .428    .201    .776       3       8  10G 3/8
Blue......................................    .144    .030    .244    .202    .190    .247    .066    .208       1      10  5.8PB 1.32/6.8.
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\1\ The four pairs of chromaticity coordinates determine the acceptable color in terms of the CIE 1931 standard colorimetric system measured with
  standard illumination source C.
\2\ Silver white is an acceptable color designation.
\3\ Available from Munsell Color Company, 2441 Calvert Street, Baltimore, Maryland 21218.