Regulation No. 121-00

Name:Regulation No. 121-00
Description:Control Identification and Tell-tales.
Official Title:Uniform Provisions Concerning the Approval of: Vehicles with Regard to the Location and Identification of Hand Controls, Tell-tales and Indicators.
Country:ECE - United Nations
Date of Issue:2006-01-18
Amendment Level:00 Series, Supplement 9
Number of Pages:19
Vehicle Types:Bus, Car, Heavy Truck, Light Truck
Subject Categories:Prior Versions
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Keywords:

approval, regulation, control, vehicle, tell-tale, type, tell-tales, controls, indicators, column, indicator, amendments, symbol, date, entry, force, series, system, table, paragraph, supplement, colour, identification, original, means, driver, yellow, granted, malfunction, function, requirements, version, manufacturer, dated, production, approved, regard, form, number, location, identifications, mark, position, extension, applying, agreement, illumination, conditions, annex, shown

Text Extract:

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E/ECE/324
) Rev.2/Add.120/Rev.1/Amend.6
E/ECE/TRANS/505 )
July 26, 2017
STATUS OF UNITED NATIONS REGULATION
ECE 121-00
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
VEHICLES WITH REGARD TO THE LOCATION AND IDENTIFICATION
OF HAND CONTROLS, TELL-TALES AND INDICATORS
Incorporating:
00 series of amendments
Date of Entry into Force: 18.01.06
Corr. 1 to the 00 series of amendments
Dated: 21.12.05
Corr. 2 to the 00 series of amendments
Dated: 07.04.06
Corr. 3 to the 00 series of amendments
Dated: 13.12.06
Corr. 4 to the 00 series of amendments (French Only)
Dated: 18.01.08
Corr. 5 to the 00 series of amendments (Including Erratum)
Dated: 03.03.10
Supplement 1 to the 00 series of amendments
Date of Entry into Force: 10.11.07
Supplement 2 to the 00 series of amendments
Date of Entry into Force: 15.10.08
Supplement 3 to the 00 series of amendments
Date of Entry into Force: 24.10.09
Supplement 4 to the 00 series of amendments
Date of Entry into Force: 23.06.11
Supplement 5 to the 00 series of amendments
Date of Entry into Force: 28.10.11
Supplement 6 to the 00 series of amendments
Date of Entry into Force: 26.07.12
Supplement 7 to the 00 series of amendments
Date of Entry into Force: 18.11.12
Supplement 8 to the 00 series of amendments
Date of Entry into Force: 15.07.13
Corr. 1 to Amendment 3 to Revision 1 to the 00 series of amendments Dated: 13.11.13
Supplement 9 to the 00 series of amendments
Date of Entry into Force: 22.06.17

REGULATION NO. 121-00
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF VEHICLES WITH REGARD TO THE
LOCATION AND IDENTIFICATION OF HAND CONTROLS, TELL-TALES AND INDICATORS
REGULATION
1. Scope
2. Definitions
3. Application for approval
4. Approval
5. Specifications
CONTENTS
6. Modifications of the vehicle type or of any aspect of specification for controls, tell-tales and
indicators and extension of approval
7. Conformity of production
8. Penalties for non-conformity of production
9. Production definitely discontinued
10. Names and addresses of technical services responsible for conducting approval tests, and of Type
Approval Authorities
11. Introductory provisions
ANNEXES
Annex 1
-
Communication concerning the approval or extension or refusal or withdrawal of a type of
vehicle with regard to the location and identification of motor vehicle hand controls,
tell-tales and indicators, pursuant to Regulation No. 121
Annex 2 - Arrangement of approval marks

3. APPLICATION FOR APPROVAL
3.1. The application for approval of a vehicle type with regard to the specification for controls,
tell-tales and indicators shall be submitted by the manufacturer or his duly accredited
representative.
3.2. It shall be accompanied by the following documents and particulars in triplicate:
3.2.1. A description of the vehicle type;
3.2.2. A list of items specified by this Regulation in Table 1 and prescribed by the manufacturer for
the vehicle as controls, tell-tales or indicators;
3.2.3. Graphical design of symbols identifying controls, tell-tales and indicators; and
3.2.4. Drawings and/or photographs showing the layout of controls and location of tell-tales and
indicators in the vehicle;
3.3. A vehicle or representative part thereof fitted with a complete set of controls, tell-tales and
indicators, as prescribed in Paragraph 3.2.2. above, representing the vehicle type to be
approved shall be submitted to the technical service responsible for conducting approval
evaluation.
4. APPROVAL
4.1. If the vehicle type submitted for approval pursuant to this Regulation meets the
requirements of the Regulation, approval of that vehicle type shall be granted.
4.2. An approval number shall be assigned to each type approved. Its first two digits (at
present 00 for the Regulation in its original form) shall indicate the series of amendments
incorporating the most recent major technical amendments made to the Regulation at the
time of issue of the approval. The same Contracting Party shall not assign this number to
another vehicle type or to the same vehicle type submitted with equipment not specified in
the list referred to in Paragraph 3.2.2 above, subject to the provisions of Paragraph 6 of this
Regulation.
4.3. Notice of approval or of extension or refusal of approval or production definitely discontinued
of a vehicle type/part pursuant to this Regulation shall be communicated to the Parties to
the 1958 Agreement applying this Regulation, by means of a form conforming to the model
in Annex 1 to this Regulation.

5.1.3. The identifications of tell-tales, indicators and controls shall be placed on or adjacent to the
tell-tales, indicators and controls that they identify. In the case of multifunction control, the
identifications need not be immediately adjacent. Nonetheless, they shall be as close as
practicable to such multifunction control.
5.1.4. Notwithstanding Paragraphs 5.1.1, 5.1.2 and 5.1.3 the tell-tale for "passenger air bag off", if
fitted, must be located within the interior of the vehicle and forward of and above the design
H-point of both the driver's and the front passenger(s)' seat in their forward most seating
positions. The tell-tale which alerts front seat occupants that the passenger air bag is
switched off must be visible to the driver and front passenger(s) under all driving conditions.
5.2. Identification
5.2.1. Where fitted, the controls, tell-tales and indicators, listed under the heading Column 3 of
Table 1, shall be identified by symbols designated for them in Column 2 of Table 1. This
requirement does not apply to the horn (an audible warning signal) control, when it is
activated by a narrow ring-type control or by a lanyard. If a symbol is used for identifying a
control, tell-tale or indicator not listed in Table 1, it is recommended to use a symbol
designated for the purpose in Standard ISO 2575:2004 where one exists and where that
symbol is suitable for the application concerned.
5.2.2. To identify a control, a tell-tale or an indicator not included in Table 1 or ISO 2575:2004, the
manufacturer may use a symbol of its own conception. Such symbol may include
internationally recognized alphabetic or numeric indications. All symbols used shall follow
the design principles laid down in Paragraph 4 of ISO 2575:2004.
5.2.3. If necessary for clarity, supplementary symbols may be used in conjunction with any symbol
specified in Table 1 or ISO 2575:2004.
5.2.4. Each additional or supplementary symbol used by the manufacturer must not cause
confusion with any symbol specified in this Regulation.
5.2.5. Where a control, an indicator or a tell-tale for the same function are combined, one symbol
may be used to identify such combination.
5.2.6. Except as provided in Paragraph 5.2.7., all identifications of tell-tales, indicators and
controls listed in Table 1 or ISO 2575:2004 must appear to the driver perceptually upright. In
case of rotating control, this paragraph applies to it when such control is in its "off" position.
5.2.7. The identification of the following need not appear to the driver perceptually upright:
5.2.7.1. A horn control,
5.2.7.2. Any control, tell-tale or indicator located on the steering wheel, when the steering wheel is
positioned for the motor vehicle to travel in other than a straight forward direction, and
5.2.7.3. Any rotating control that does not have an off position.
5.2.8. Each control for the automatic vehicle speed system (cruise control) and each control for
heating and air conditioning system(s) shall have identification provided for each function of
each such system.

5.4.3. Each symbol used for identification of tell-tale, control or indicator shall stand out clearly
against the background.
5.4.4. The dark part of any symbol may be replaced by its outline.
5.5. Common Space for Displaying Multiple Information
5.5.1. A common space may be used to show information from any source, subject to the following
requirements:
5.5.1.1. The tell-tales and indicators in the common space shall provide relevant information at the
initiation of any underlying condition.
5.5.1.2. When the underlying condition exists for actuation of two or more tell-tales, the information
shall be either
5.5.1.2.1. Repeated automatically in sequence, or
5.5.1.2.2. Indicated by visible means and capable of being selected for viewing by the driver under the
conditions of Paragraph 5.6.2.
5.5.1.3. The tell-tales for the brake system malfunction, headlamp driving beam, direction indicator
and seat belt shall not be shown in the same common space.
5.5.1.4. If tell-tale for the brake system malfunction, headlamp driving beam, direction indicator or
seat belt is displayed in a common space it must displace any other symbol in such
common space if the underlying condition exists for its activation.
5.5.1.5. With the exception of tell-tales for the brake system malfunction, headlamp driving beam,
direction indicator or seat belt, the information may be cancellable automatically or by the
driver.
5.5.1.6. Unless prescribed in a specific Regulation, the colour requirements regarding tell-tales do
not apply when tell-tales appear in a common space.
5.6. Conditions
5.6.1. The driver has adapted to the ambient light conditions.
5.6.2. The driver is restrained by the installed crash protection system, adjusted in accordance
with the manufacturer's instructions, and is free to move within constraints of that system.

10. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR
CONDUCTING APPROVAL TESTS AND OF TYPE APPROVAL AUTHORITIES
The Parties to the 1958 Agreement applying this Regulation shall communicate to the
United Nations Secretariat the names and addresses of the technical services responsible
for conducting approval tests and of the Type Approval Authorities which grant approval and
to which forms certifying approval or extension or refusal or withdrawal of approval, issued
in other countries, are to be sent.
11. INTRODUCTORY PROVISIONS
11.1. As from the date of entry into force of this Regulation, Contracting Parties applying this
Regulation shall not:
(a)
(b)
Refuse to grant ECE approval for a vehicle type under this Regulation,
Prohibit the sale or entry into service of a type of vehicle with regard to the
specification for controls, tell-tales and indicators,
if the vehicle type complies with the requirements of this Regulation.
11.2. Until 2 years after entry into force of this Regulation, Contracting Parties applying this
Regulation shall not refuse to grant national approval of a vehicle type with regard to the
specification for controls, tell-tales and indicators if the vehicle type does not comply with the
requirements of this Regulation.

Table 1 (Continued)
No.
Column 1
Column 2
Column 3
Column 4
Column 5
ITEM
SYMBOL
FUNCTION
ILLUMINATION
COLOUR
11. Engine coolant temperature
Tell-tale
Yes
Red
Indicator
Yes
12. Electrical charging condition Tell-tale Yes Red
Indicator
Yes
13. Windscreen wiping system
(continuous)
Control
Yes
14. Power window lock
Control
No
15. Windscreen washing system
Control
Yes
16. Windscreen washing and wiping
system
Control
Yes
17. Windscreen defrosting and
defogging system (with separate
operating control)
18. Rear window defrosting and
defogging system (with separate
operating control)
19. Position, side marker, and/or
end-outline marker lamps
Control
Yes
Tell-tale
Yes
Yellow
Control
Yes
Tell-tale
Yes
Yellow
Control
No
Tell-tale
Yes
Green
20. Parking lamps Control No
Tell-tale Yes Green
21. Seat belt
Tell-tale Yes Red
22. Airbag malfunction
Tell-tale
Yes
Yellow
and/or Red

Table 1 (Continued)
No.
Column 1
Column 2
Column 3
Column 4
Column 5
ITEM
SYMBOL
FUNCTION ILLUMINATION
COLOUR
36. Engine stop
Control
Yes
37. Brake lining wear-out
condition
Tell-tale
Yes
Yellow
38. Heating system
Control
Yes
39. Heating and/or air
conditioning fan
Control
Yes
40. Headlamp levelling
or
and
Control
No
41. Odometer km, if kilometres
are shown or miles,
if miles are
shown
Indicator
42a. Low tyre pressure
(including malfunction)
Tell-tale
Yes
Yellow
Yes
42b. Low tyre pressure
(including malfunction)
that identifies affected tyre
Tell-tale
Yes
Yellow
43 Electronic stability control
(including malfunction)
Tell-tale
Yes
see
Regulation Nos.
13-H and 13 as
appropriate

ANNEX 1
COMMUNICATION
(Maximum format: A4 (210 mm × 297 mm))
Issued by:
Name of administration
.....................................
.....................................
.....................................
concerning:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITELY DISCONTINUED
of a type of vehicle with regard to the location and identification of motor vehicle hand controls, tell-tales
and indicators, pursuant to Regulation No. 121.
Approval No. ................................... Extension No. ...........................................
1. Trade name or mark of the vehicle: ..................................................................................................
2. Manufacturer's name for the type of vehicle: ....................................................................................
3. Manufacturer's name and address: ..................................................................................................
4. If applicable, name and address of the manufacturer's representative:
...........................................................................................................................................................
5. Submitted for approval on: ................................................................................................................
6. Technical service responsible for conducting approval tests:
...........................................................................................................................................................
7. Date of test report: ............................................................................................................................
8. Number of test report: .......................................................................................................................

ANNEX 2
ARRANGEMENTS OF APPROVAL MARKS
Model A
(See Paragraph 4.4. of this Regulation)
a = 8 mm min.
The above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to
the location and identification of hand controls, tell-tales and indicators, been approved in the
Netherlands (E4) pursuant to Regulation No. 121 under the approval No. 001234. The first two digits (00)
of the approval number indicated that the approval was granted in accordance with the requirements of
Regulation No. 121 in its original form.
Model B
(see Paragraph 4.5. of this Regulation)
a = 8 mm min.
The above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved
in the Netherlands (E4) pursuant to Regulation No. 121 and Regulation No. 33 . The approval number
indicates that, at the dates when the respective approvals were given, Regulation No. 121 was in its
original form and Regulation No. 33 was still in its original form.
Control Identification and Tell-tales.