TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.10 GENERAL
Section 428.10 General
These rules supplement and
comply with statutory requirements.
a) Effective Date: These rules take effect January 1, 1973.
b) Authority: These rules are established pursuant to the
provisions of Section 12-405 of the Illinois Vehicle Code.
c) Purpose: These rules are established to facilitate compliance
with the provisions of Section 12-405 concerning the sale, lease, installation,
or use of unsafe tires and, thereby, to lessen the dangers of vehicle operation
on the streets and highways of this State.
d) Scope: These rules set forth precepts, criteria, and
standards for use in determining, by visual inspection, whether a tire shall be
considered to be unsafe. Descriptions or examples of damage, deterioration,
markings, lack of markings, tread conditions, and wear are included. Also
included are summaries of statutory requirements and enforcement procedures.
e) Application: These rules apply to any passenger car tire
listed either in the tables of Appendix A included herewith or in future
revisions of these tables issued by the Director of the Office of
Transportation Safety in the Illinois Department of Transportation.
1) These rules do not apply to any tire on a wrecked, damaged,
disabled, or impounded vehicle being towed to a repair, collection, salvage,
holding, or storage location either with a driver in the towed vehicle or by
means of a vehicle, such as a wrecker, designed and equipped for this special
use.
2) These rules do not apply to a spare tire.
f) Definitions
1) Standard Definitions: Unless otherwise stated, words or terms
are used in the appropriate meaning defined in Webster's Third New International
Dictionary.
2) Special Definitions
"Bead" means that part of the tire made of steel
wires, wrapped, or reinforced by ply cords, that is shaped to fit the rim.
"Bottom of the tread groove" means the portions of
a tread groove nearest the carcass.
"Carcass" means the tire structure, except tread
rubber and sidewall rubber.
"Circumference of the tire" or "Tire
circumference", in connection with the spacing of either tread wear
indicators or tread wear measurements, means a closed line around the tire
perimeter that lies approximately in a plane perpendicular to the axis about
which the tire rotates when in use.
"Cord" means the strands forming the plies in the
tire.
"Depth of tread" (see "Tread groove
depth").
"Highway", or "Street", means the
entire width between boundary lines of every way or place of whatever nature
when any part thereof is open to the use of the public as a matter of right for
purposes of vehicular traffic, other than public ways for vehicular traffic
within a park district for which the park district has maintenance
responsibility, excepting the Chicago Park District.
"Install" (see "Mount").
"Lease" means granting the nonpermanent possession
or use of and includes such acts as renting or lending.
"Mount", or "Install", means assembling a
tire to a rim.
"Passenger Car Tire" means any tire of a size
designation and type listed in Federal Motor Vehicle Safety Standard 109, as
amended. (See Appendix A.)
"Ply" means a layer of rubber-coated parallel
cords.
"Recut" (see "Regroove").
"Regroove", or "Recut", means either the
deliberate deepening of existing tread grooves by cutting, burning, or other
means or the deliberate forming, by cutting, burning, or other means, of a
groove other than the original molded grooves made by the tire manufacturer or
retreader.
"Retreaded" means manufactured by a process in
which a tread is attached to a used tire.
"Rim" means the metal that supports a tire and that
is located between the tire and the wheel disc or wheel spokes when in use on a
vehicle. The rim may be integral with, permanently or temporarily attached to,
or separate from the wheel.
"Roadway" means that portion of a highway
improved, designed or ordinarily used for vehicular travel, exclusive of the
berm or shoulder.
"Separation" means a parting or pulling away from
the adjacent portion(s) of the tire structure or material.
"Sidewall" means that portion of a tire between the
tread and the bead.
"Snowmobile" means a self-propelled device
designed for travel on snow or ice or natural terrain steered by skis or
runners, and supported in part by skis, belts, or cleats.
"Street" (see "Highway").
"Tie bar" means rubber that is molded across a
tread groove and that braces or stabilizes adjacent tread elements.
"Tire circumference" (see "Circumference of
tire").
"Tread" means the thickness of tire rubber that is
located outside the carcass and that normally comes into contact with the
roadway as the inflated tire wears during use.
"Tread element" means a distinct portion of the
tread, such as a rib, lug, or knob, that comes into contact with the surface of
a dry, paved road.
"Tread groove" means the space between adjacent
tread elements.
"Tread groove depth", or "Depth of
tread", means the shortest distance from a plane in contact with two
adjacent tread elements to the bottom of the tread groove that is located
between the adjacent tread elements.
"Tread wear indicator" means a molded lump that
stands 2/32 (1/16) of an inch above
the bottom of tread groove.
"Undertread" means the rubber between the bottom of
the tread grooves and the carcass.
"Vehicle" means every device in, upon, or by
which any person is or may be transported or drawn upon a highway, except
devices moved by human power, devices used exclusively upon stationary rails or
tracks and snowmobiles as defined in the Snowmobile Registration and Safety Act
(Ill. Rev. Stat. 1981, ch. 95½, par. 601-2.15).
"Visual Inspection" means a checking or testing by
sight and includes the comparing of portions of tires with simple scales or
gauges and the use and reading of such scales or gauges.
 | TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.20 UNSAFE CONDITIONS OF TIRES
Section 428.20 Unsafe
Conditions of Tires
A tire is considered to be
unsafe if it exhibits any one of the following conditions or any combination of
these conditions.
a) EXPOSED PLY OR CORD. A ply or cord is exposed when any
portion of the ply or cord material can be seen by the person inspecting the
tire. If parting or lifting the edge(s) of a crack, cut, snag, flap, or other
tire surface interruption allows ply or cord material to be seen, the ply or
cord is exposed.
b) BULGE, KNOT OR SEPARATION IN EITHER SIDEWALL OR TREAD AREA.
These conditions indicate deterioration or internal damage of the tire
structure. A bulge or knot usually indicates cord, sidewall, and/or tread
separation, often accompanied by or caused by seepage of compressed air through
the tire structure. A tire with any other condition that shows separation in
sidewall or tread area or with any knot or bulge not accompanied by evidence of
separation also shall be considered to be unsafe.
c) A MARKING THAT INDICATES THE TIRE IS NOT INTENDED FOR USE ON
PUBLIC STREETS OR HIGHWAYS. Some examples are: "Unsafe for highway
use", "Not for highway use", "For racing purposes
only", and "For beach use." These or other markings might be
applied by branding, cementing, cutting, molding, vulcanizing, or otherwise
generating or affixing depressed or raised letters, numerals, or other suitable
characters, into or onto a tire, either when the tire is manufactured or
subsequent to manufacture. Other examples and descriptions are given in
Appendix B.
d) ABSENCE OF A READABLE MARKING SHOWING THE SIZE DESIGNATION OF
A TIRE OR ABSENCE OF A READABLE MARKING SHOWING THE RELATIVE LOAD CARRYING
ABILITY OF THE TIRE.
1) These markings are needed to minimize installation and use of
tires of incorrect size or load carrying ability. Tire size markings are shown
in Appendix A. Relative load carrying ability markings are:
|
Load
Range
|
Ply
or
Ply
Rating
|
Maximum
Inflation
Pressure
|
|
|
|
|
|
B
|
4
|
32
psi*
|
|
C
|
6
|
36
psi
|
|
D
|
8
|
40
psi
|
|
|
|
|
|
|
|
*Pounds per square inch
|
2) The markings shown on each horizontal line in the above table
indicate equivalent relative load carrying ability. The presence of any one of
the three types, together with a size marking, is satisfactory.
e) TREAD WEAR INDICATORS FLUSH WITH THE TREAD OUTER SURFACE IN
ANY 2 OR MORE ADJACENT TREAD GROOVES AT 3 LOCATIONS EQUALLY SPACED AROUND THE
CIRCUMFERENCE OF THE TIRE. A tire is considered to be unsafe when the flush
condition exists:
1) In the same pair of adjacent grooves at each of the 3
locations; or
2) In the same pair of adjacent grooves at 2 of the locations and
in a different pair of adjacent grooves at the 3rd location; or
3) In a different pair of adjacent grooves at each of the 3
locations.
Note: Tread wear indicators were molded into the bottoms of
tread grooves in passenger car tires manufactured in compliance with federal
requirements after July 31, 1968. They were molded into the grooves of many
tires manufactured prior to that time. Tread wear indicators might be molded
into the grooves of retreaded or recapped tires.
f) A TREAD GROOVE DEPTH OF LESS THAN 2/32nds
(1/16th) OF AN INCH MEASURED IN ANY 2 OR MORE ADJACENT
TREAD GROOVES AT 3 LOCATIONS ESSENTIALLY EQUALLY SPACED AROUND THE
CIRCUMFERENCE OF THE TIRE, AT LEAST ONE OF WHICH IN THE JUDGEMENT OF THE
INSPECTING OFFICER IS A LOCATION AT WHICH THE TREAD IS THINNEST, EXCLUSIVE OF
TIE BARS OR TREAD WEAR INDICATORS. This rule is primarily for treads without
tread wear indicators but, at the discretion of an inspecting officer, it may
be used for a tread with tread wear indicators. When using this rule, do not
measure on, or directly above, any tie bar or tread wear indicator.
1) Any tire without tread grooves (i.e. "slick" or
"bald") either in an area covering 2 or more tread grooves or in an
area covering 25 percent (¼), or more, of the tread width is considered to have
a tread groove depth of less than 2/32nds of an inch in 2
or more adjacent tread grooves at the location of such area. Depth
measurements are not necessary in such an area.
2) If the "slick" or "bald" condition of
Section 428.20(f)(1) is not present, measure tread groove depths in at least 2
adjacent grooves at a location where the tread appears to be thinnest, i.e.
where the tread grooves appear to be shallowest. If the groove depth equals or
exceeds 2/32nds of an inch in either of the 2 shallowest
adjacent grooves at this location, no additional measurements are necessary and
tread groove depth is satisfactory.
3) If the groove depths are less than 2/32nds
of an inch in the 2 adjacent grooves checked under Section 428.20(f)(2), above,
take measurements at 2 additional locations spaced within 5 degrees of 120
degrees around the tire circumference from the first location, in each case
measuring in at least the 2 adjacent grooves that appear to be shallowest. If
the groove depths in 2 adjacent grooves are less than 2/23nds
of an inch at both these additional locations, the tire is considered to be unsafe.
Note that this requires three pairs of groove depths less than 2/23nds
of an inch in adjacent grooves, but that the same pair of adjacent grooves need
not be measured in each of the three locations (See Section 428.20(e), above).
4) Additional information, examples, and requirements concerning
tread groove measurements are given in Appendix B.
g) REGROOVED OR RECUT IN ANY PORTION OF THE TREAD AND NOT MEETING
ALL APPLICABLE REQUIREMENTS SET FORTH AND REFERRED TO IN SECTION 428.20(g)(2),
BELOW.
1) Irregular or erratic tread grooves are evidence of manual
regrooving. The irregularities might be evidenced by erratic shapes or depths
of grooving or by erratic variations in rib width or the shape, location, or
spacing of any pattern or design formed in the tread by the tread grooves.
Straight grooves without any of the evenly spaced lateral offsets, undulations,
or variations, usually formed in molded tread grooves could be evidence of
machine regrooving. If grooves are cut by a machine that generates periodic
lateral offsets, etc., the spacing of the offsets might be erratic where the
end of a grooving cut joins the start of the cut.
2) A properly regrooved and marked tire may be sold, leased,
installed or used. A tire that is branded "REGROOVED" on each
sidewall in letters not less than one inch in height, and that meets all
applicable requirements of the Federal Motor Vehicle Safety Regulation for
Regrooved Tires shown in (49 CFR 569) is not considered to be unsafe. The
applicable requirements are shown and explained in Appendix B.
| TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.30 TIRE MOUNTED ON VEHICLE OFFERED FOR SALE OR FOR LEASE
Section 428.30 Tire Mounted
on Vehicle Offered for Sale or For Lease
Under the provisions of (d)5 in
Section 12-405 of the Illinois Vehicle Code, a tire mounted on a vehicle being
offered for sale or for lease may not exhibit a tread groove depth, or depth of
tread, less than 3/32 of an inch.
a) Such a tire is in violation of this provision when any tread
wear indicator is less than 1/32 of an inch below the
tread outer surface.
b) Such a tire is in violation of this provision when a tread
groove measures less than 3/32 of an inch in depth at any
location.
c) The rules stated in Section 428.30(a) and (b), above, apply
only while the vehicle is being offered for sale or for lease. The rules given
in Section 428.20, above, also apply during such offer and at other times.
| TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.40 USE, INSTALLATION, SALE, OR LEASE OF UNSAFE TIRE
Section 428.40 Use,
Installation, Sale, or Lease of Unsafe Tire
a) Section 12-405 of the Illinois Vehicle Code provides that no
person or organization shall drive or move or cause to be driven or to be moved
on the public streets or highways of this State any vehicle equipped with one
or more passenger car tires considered to be unsafe, except that tires on
certain towed vehicles are exempt (See Section 428.10(e)(1), above).
b) Section 12-405 also provides that no person or organization
shall sell or lease or offer for sale or lease, or mount or install, or cause
to be mounted or to be installed for use on the public streets or highways of
this State any passenger car tire considered to be unsafe, and provides that a
person offering a vehicle for sale or for lease shall correct any unsafe tire
condition before the vehicle is driven or moved on a public street or highway.
c) The rules set forth herein are to be used in determining
whether a tire is unsafe.
| TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.50 COMPLIANCE AND ENFORCEMENT
Section 428.50 Compliance
and Enforcement
Section 12-405 of the Illinois
Vehicle Code provides that any police officer, upon reasonable cause to believe
a statutory provision shown in Section 428.40, above, has been violated, shall
require the appropriate person or organization to submit the tire(s) to an
inspection. A vehicle driver must stop at a location designated by a police
officer and permit tires to be inspected. Also, a vehicle driver must move the
vehicle to a reasonably convenient and suitable location when, in the judgment
of the officer, such action is essential to the completion of an efficient and
safe inspection of the tires.
Section 428.APPENDIX A Tire Size Designations and Types
| TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.APPENDIX A TIRE SIZE DESIGNATIONS AND TYPES
Section 428.APPENDIX A Tire
Size Designations and Types
The purpose of this Appendix is
to show the tire size designations and types listed in Federal Motor Vehicle
Safety Standard 109 (49 CFR 571.109), as amended. This Appendix lists, under
each type of tire, the size designation of the smallest and the largest tire
for each rim size shown in Standard 109 under that type of tire. All similar
intermediate size designations for each rim size listed herein under each tire
type are considered to be included. (Note: The rim size is the two digit
number, such "13" of "16", at the end of each tire size
designation.)
|
A)
|
Conventional and Low Section
Height Bias Ply Tires:
|
|
|
6.00-13
|
through
|
7.00-13
|
|
|
6.00-14
|
"
|
9.50-14
|
|
|
6.00-15
|
"
|
9.15-15, plus L84-15
|
|
|
6.00-16
|
"
|
7.50-16
|
|
|
6.50-17
|
"
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash."
|
|
B)
|
"70 Series" Bias Ply
Tires:
|
|
|
A70-13
|
through
|
D70-13
|
|
|
D70-14
|
"
|
L70-14
|
|
|
C70-15
|
"
|
L70-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
C)
|
Bias Ply Tires:
|
|
|
|
|
"Super Balloon"
Sizes
|
|
|
|
|
4.80-10
|
through
|
5.90-10
|
|
|
5.20-12
|
"
|
6.20-12
|
|
|
5.20-13
|
"
|
6.90-13
|
|
|
5.20-14
|
"
|
6.45-14
|
|
|
7.20-15
|
"
|
6.40-15
|
|
|
"Low Section" Sizes
|
|
|
|
|
5.00-12
|
through
|
6.00-12
|
|
|
5.00-13
|
"
|
7.50-13
|
|
|
5.50-15L
|
"
|
7.00-15L
|
|
|
"Super Low Section"
|
|
|
|
|
Sizes
|
|
|
|
|
145-10/5.95-10
|
|
|
|
|
125-12/5.35-12
|
through
|
155-12/6.15-12
|
|
|
135-13/5.65-13
|
"
|
185-13/7.35-13
|
|
|
135-14/5.65-14
|
"
|
155-14/6.15-14
|
|
|
165-14
|
"
|
255-14
|
|
|
125-15/5.35-15
|
"
|
175-15/7.15-15
|
|
|
165-15
|
"
|
235-15
|
|
|
5.0-15
|
"
|
5.5-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
D)
|
Dash ( – )
Radial Ply Tires:
|
|
|
|
|
145-10
|
|
|
|
|
125-12
|
through
|
155-12
|
|
|
135-13
|
"
|
195-13
|
|
|
135-14
|
"
|
225-14
|
|
|
125-15
|
"
|
240-15
|
|
|
185-16
|
|
|
|
|
165-400
|
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
E)
|
"77 Series" Bias
Play Tires:
|
|
|
|
5.9-10
|
|
|
|
|
5.9-12
|
through
|
6.2-12
|
|
|
6.2-13
|
"
|
6.9-13
|
|
|
G77-14
|
|
|
|
|
6.2-15
|
through
|
6.9-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
F)
|
Type "R" Radial Ply
Tires:
|
|
|
|
5.20R10
|
|
|
|
|
5.22R12
|
through
|
5.60R12
|
|
|
5.00R13
|
"
|
7.25R13
|
|
|
5.20R14
|
"
|
7.50R14
|
|
|
5.60R15
|
"
|
7.60R15
|
|
|
The letter "H",
"S" or "V" may be included in any specified tire size
designation adjacent to the "R".
|
|
G)
|
"70 Series" Type
"R" Radial Ply Tires:
|
|
|
|
AR70-13
|
through
|
DR70-13
|
|
|
CR70-14
|
"
|
LR70-14
|
|
|
DR70-15
|
"
|
MR70-15
|
|
|
The letters "HR",
"SR", or "VR" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
H)
|
Type "R" Radial Ply
Tires:
|
|
|
|
145R10
|
|
|
|
|
125R12
|
through
|
155R12
|
|
|
135R13
|
"
|
195R13
|
|
|
135R14
|
"
|
225R14
|
|
|
125R15
|
"
|
235-R15
|
|
|
The letter "H",
"S" or "V" may be included in any specified tire size
designation adjacent to the "R".
|
|
J)
|
"78 Series" Bias Ply
Tires:
|
|
|
|
|
A78-13
|
through
|
D78-13
|
|
|
B78-14
|
"
|
J78-14
|
|
|
A78-15
|
"
|
N78-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
K)
|
"60 Series" Bias Ply
Tires:
|
|
|
|
|
A60-13
|
through
|
D60-13
|
|
|
D60-14
|
"
|
L60-14
|
|
|
D60-15
|
"
|
L60-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
L)
|
Series 50 Cantilevered
Sidewall Tires:
|
|
|
|
E50C-16
|
through
|
F50C-16
|
|
|
G50C-17
|
"
|
H50C-17
|
|
|
L50C-18
|
|
|
|
|
The letters "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
M)
|
"78 Series" Radial
Ply Tires:
|
|
|
|
AR78-13
|
through
|
CR78-13
|
|
|
BR78-14
|
"
|
JR78-14
|
|
|
AR78-15
|
"
|
LR78-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to the "R".
|
|
O)
|
"Low Section" Type
"R" Radial Ply Tires:
|
|
|
|
140R12
|
through
|
150R12
|
|
|
150R13
|
"
|
170R13
|
|
|
150R14
|
|
|
|
|
180r15
|
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to the letter "R".
|
|
P)
|
Series 45 Cantilevered
Sidewall Tires:
|
|
|
|
F45C-16
|
|
|
|
|
The letter "H",
"S, or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
R)
|
"60 Series" Radial
Ply Tires:
|
|
|
|
AR60-13
|
through
|
ER60-13
|
|
|
FR60-14
|
"
|
GR60-14
|
|
|
ER60-15
|
"
|
LR60-15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
S)
|
"60 Series" Radial
Ply Tires:
|
|
|
|
185/60 R 13
|
|
|
|
|
205/60 R 14
|
through
|
245/60 R 14
|
|
|
255/60 R 15
|
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to the "R".
|
|
T)
|
"70 Series" Radial
Ply Tires:
|
|
|
|
205/70 R 13
|
|
|
|
|
205/70 R 14
|
through
|
225/70 R 14
|
|
|
195/70 R 15
|
"
|
255/70 R 15
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to the letter "R".
|
|
U)
|
"60 Series"
Cantilevered Tires:
|
|
|
|
C60C-15
|
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designation adjacent to or in place of the "dash".
|
|
V)
|
Series "50" Bias Ply
Tires:
|
|
|
|
|
H50-14
|
|
|
|
|
The letter "H",
"S", or "V" may be included in any specified tire size
designations adjacent to or in place of the "dash".
|
| TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428
UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.APPENDIX B EXAMPLES, EXPLANATIONS, DESCRIPTIONS AND OTHER INFORMATION
Section 428.APPENDIX B Examples,
Explanations, Descriptions and Other Information
(This Appendix will be published
when the requisite information is available and properly prepared for
presentation and use. It will contain examples, explanations, descriptions,
and other information or data to supplement those portions of Section 428.20 of
this Part that refer to Appendix B.)
(Note: The Department of Transportation, as of this date, has not
published this Appendix and currently has no plans to do so.)
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