Regulation No 21 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of vehicles with regard to their interior fittings
Date: 2008-07-16
Institutions: United Nations Economic Commission for Europe
Subjects: approval, motor car, technical regulations, technical standard, vehicle parts

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ACTS ADOPTED BY BODIES CREATED BY INTERNATIONAL AGREEMENTS

Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation
should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at: http://www.unece.org/trans/
main/wp29/wp29wgs/wp29gen/wp29fdocstts.html

Regulation No 21 of the Economic Commission for Europe of the United Nations (UN/ECE) —
Uniform provisions concerning the approval of vehicles with regard to their interior fittings

Incorporating all valid text up to:

Supplement 3 to the 01 series of Amendments — Date of entry into force: 31 January 2003

1.

SCOPE

This Regulation applies to the interior fittings of passenger cars with regard to:

1.1.

1.2.

1.3.

1.4.

1.5.

the interior parts of the passenger compartment other than the rear-view mirror or mirrors:

the arrangement of the controls;

the roof or opening roof; and

the seat-back and the rear parts of seats;

power-operation of windows, roof panels and partition systems.

2.

DEFINITIONS

For the purposes of this Regulation:

2.1.

2.2.

‘approval of a vehicle’ means the approval of a vehicle type with regard to its interior fittings;

‘vehicle type’ with regard to the interior fittings of the passenger compartment means vehicles of
category M1 which do not differ in such essential respects as:

2.2.1.

the lines of constituent materials of the bodywork of the passenger compartment;

2.2.2.

the arrangement of the controls;

2.2.3.

the performance of the protective system, if the reference zone within the head impact zone
determined according to Annex VIII (dynamic evaluation) is chosen by the applicant.

2.2.3.1.

Vehicles that differ only in the performance of the protective system(s) belong to the same
vehicle type if they offer an equal or better protection for the occupants compared with the
system or vehicle submitted to the technical service responsible for conducting the approval
tests.

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2.3.

2.3.1.

2.3.2.

‘reference zone’ is the head impact zone as defined in Annex I to this Regulation, or at the choice
of the manufacturer, according to Annex VIII, excluding the following areas: (see Annex X,
explanatory notes, paragraphs 2.3 and 2.3.1);

the area bounded by the forward horizontal projection of a circle circumscribing the outer
limits of the steering control, increased by a peripheral band 127 mm in width; this area is
bounded below by the horizontal plane tangential to the lower edge of the steering control
when the latter is in the position for driving straight ahead. (see Annex X, explanatory notes,
paragraphs 2.3 and 2.3.1);

the part of the surface of the instrument panel comprised between the edge of the area specified
in paragraph 2.3.1 above and the nearest inner side-wall of the vehicle; this part of the surface
is bounded below by the horizontal plane tangential to the lower edge of the steering control;
and (see Annex X, explanatory notes, paragraphs 2.3 and 2.3.1);

2.3.3.

the windscreen side pillars; (see Annex 10, explanatory notes, paragraphs 2.3 and 2.3.1);

2.4.

2.5.

2.6.

2.7.

2.8.

2.9.

‘level of the instrument panel’ means the line defined by the points of contact of vertical tangents
to the instrument panel; (see Annex X, explanatory notes, paragraph 2.4);

‘roof’ means the upper part of the vehicle extending from the upper edge of the windscreen to
the upper edge of the rear window and bounded at the sides by the upper framework of the
side-walls; (see Annex X, explanatory notes, paragraph 2.5);

‘belt line’ means the line constituted by the transparent lower contour of the side windows of
the vehicle;

‘convertible car’ means a vehicle where, in certain configurations, there is no rigid part of the
vehicle body above the belt line with the exception of the front rof supports and/or the roll-
over bars and/or the seat belt anchorage points; (see Annex X, explanatory notes, paragraphs
2.5 and 2.7);

‘vehicle with opening roof’ means a vehicle of which only the roof or part of it can be folded back
or be opened, or may slide, leaving the existing structural elements of the vehicle above the belt
line (see Annex X, explanatory notes, paragraphs 2.5);

‘folding (tip-up) seat’ means an auxiliary seat intended for occasional use and which is normally
folded out of the way.

2.10.

‘Protective system’ means interior fittings and devices intended to restrain the occupants.

2.11.

‘Type of a protective system’, means a category of protective devices which do not differ in such
essential respects as:

2.11.1.

their technology;

2.11.2.

their geometry;

2.11.3.

their constituent materials.

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2.12.

‘Power-operated windows’ means windows which are closed by power supply of the vehicle.

2.13.

2.14.

2.15.

‘Power-operated roof-panel systems’ means movable panels in the vehicle roof which are closed by
power supply of the vehicle by either a sliding and/or tilting motion, and which do not include
convertible top systems.

‘Power-operated partition systems’ means systems which divide a passenger car compartment into
at least two sections and which are closed using the power supply of the vehicle.

‘Opening’
is the maximum unobstructed aperture between the upper edge or leading edge,
depending on the closing direction, of a power-operated window or partition or roof panel
and the vehicle structure which forms the boundary of the window, partition or roof panel,
when viewed from the interior of the vehicle or, in the case of partition system, from the rear
part of the passenger compartment.

To measure an opening, a cylindrical test rod shall (without exerting force) be placed through it
normally perpendicular to the edge of the window, roof panel or partition and perpendicular to
the closing direction as shown in Figure 1 of Annex IX, from the interior through to the
exterior of the vehicle or, as applicable, from the rear part of the passenger compartment.

2.16.

‘Key’

2.16.1.

‘Ignition key’ means the device that operates the electric power supply necessary to operate the
engine or motor of the vehicle. This definition does not preclude a non-mechanical device.

2.16.2.

2.17.

2.18.

3.

3.1.

3.2.

‘Power key’ means the device which allows power to be supplied to the power systems of the
vehicle. This key may also be the ignition key. This definition does not preclude a non-
mechanical device.

‘Airbag’ means a device installed to supplement safety belts and restraint systems in power
driven vehicles, i.e. systems which in the event of a severe impact affecting the vehicle auto­
matically deploy a flexible structure intended to limit, by compression of the gas contained
within it, the severity of the contacts of one or more parts of an occupant of the vehicle with
the interior of the passenger compartment.

A ‘sharp edge’ is an edge of a rigid material having a radius of curvature of less than 2,5 mm
except in the case of projections of less than 3,2 mm, measured from the panel according to
the procedure described in paragraph 1 of Annex VI. In this case, the minimum radius of
curvature shall not apply provided the height of the projection is not more than half its width
and its edges are blunted (see Annex X, explanatory notes, paragraph 2.18).

APPLICATION FOR APPROVAL

The application for approval of a vehicle type with regard to its interior fittings shall be
submitted by the vehicle manufacturer or by his duly accredited representative.

It shall be accompanied by the undermentioned documents in triplicate and by the following
particulars:

a detailed description of the vehicle type with regard to the items mentioned in paragraph 2.2
above, accompanied by a photograph or an exploded view of the passenger compartment. The
numbers and/or symbols identifying the vehicle type shall be specified.

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3.3.

The following must be submitted to the technical service responsible for conducting the
approval tests:

3.3.1.

at the manufacturer’s discretion, either a vehicle representative of the vehicle type to be
approved or the part or parts of the vehicle regarded as essential for the checks and tests
prescribed by this Regulation;

3.3.2.

at the request of the aforesaid technical service, certain components and certain samples of the
materials used.

4.

4.1.

4.2.

4.3.

4.4.

4.4.1.

4.4.2.

4.5.

APPROVAL

If the vehicle submitted for approval pursuant to this Regulation meets the requirements of
paragraph 5 below, approval of that vehicle type shall be granted.

An approval number shall be assigned to each type approved. Its first two digits (at present 01
corresponding to the 01 series of amendments which entered into force on 26 April 1986)
technical
shall
amendments made to the Regulation at the time of issue of the approval. The same Contracting
Party shall not assign the same number to another vehicle type.

indicate the series of amendments incorporating the most

recent major

Notice of approval or of extension or refusal or of withdrawal of approval or production
definitely discontinued of a vehicle type pursuant to this Regulation shall be communicated
to the Parties to the Agreement which apply this Regulation by means of a form conforming to
the model in Annex II to this Regulation.

There shall be affixed, conspicuously and in a readily accessible place specified on the approval
form, to every vehicle conforming to a vehicle type approved under this Regulation, an inter­
national approval mark consisting of:

a circle surrounding the letter ‘E’ followed by the distinguishing number of the country which
has granted approval (1);

the number of this Regulation, followed by the letter ‘R’, a dash and the approval number to
the right of the circle prescribed in paragraph 4.4.1 above.

If the vehicle conforms to a vehicle type approved, under one or more other Regulations
annexed to the Agreement, in the country which has granted approval under this Regulation,
the symbol prescribed in paragraph 4.4.1 need not be repeated; in such a case the Regulation
and approval numbers and the additional symbols of all the Regulations under which approval
has been granted in the country which has granted approval under this Regulation shall be
placed in vertical columns to the right of the symbol prescribed in paragraph 4.4.1 above.

(1) 1 for Germany, 2 for France, 3 for Italy, 4 for the Netherlands, 5 for Sweden, 6 for Belgium, 7 for Hungary, 8 for the
Czech Republic, 9 for Spain, 10 for Yugoslavia, 11 for the United Kingdom, 12 for Austria, 13 for Luxembourg, 14
for Switzerland, 15 (vacant), 16 for Norway, 17 for Finland, 18 for Denmark, 19 for Romania, 20 for Poland, 21 for
Portugal, 22 for the Russian Federation, 23 for Greece, 24 for Ireland, 25 for Croatia, 26 for Slovenia and 27 for
Slovakia, 28 for Belarus, 29 for Estonia, 30 (vacant), 31 for Bosnia and Herzegovina, 32 for Latvia, 33 (vacant), 34 for
Bulgaria, 35-36 (vacant), 37 for Turkey, 38-39 (vacant), 40 for The former Yugoslav Republic of Macedonia, 41
(vacant), 42 for the European Community (Approvals are granted by its Member States using their respective ECE
symbol), 43 for Japan, 44 (vacant), 45 for Australia and 46 for Ukraine. Subsequent numbers shall be assigned to
other countries in the chronological order in which they ratify or accede to the Agreement Concerning the Adoption
of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on
Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these
Prescriptions, and the numbers thus assigned shall be communicated by the Secretary-General of
the United
Nations to the Contracting Parties to the Agreement.

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4.6.

The approval mark shall be clearly legible and be indelible.

4.7.

The approval mark shall be placed close to or on the vehicle data plate affixed by the
manufacturer.

4.8.

Annex III to this Regulation gives examples of arrangement of the approval marks.

5.

5.1.

5.1.1.

5.1.2.

REQUIREMENTS

Forward interior parts of the passenger compartment above the level of the instrument panel in
front of the front seat ‘H’ points, excluding the side doors.

The reference zone defined in paragraph 2.3 above must not contain any dangerous roughness
or sharp edges likely to increase the risk of serious injury to the occupants. If the head impact
area is determined according to Annex I, the parts referred to in paragraphs 5.1.2 to 5.1.6
below shall be deemed satisfactory if they comply with the requirements of those paragraphs. If
the head impact area is determined according to Annex 8, the requirements of paragraph 5.1.7
shall apply. (see Annex 10, explanatory notes, paragraph 5.1.1)

Vehicle parts within the reference zone with the exception of those which are not part of the
instrument panel and which are placed at less than 10 cm from glazed surfaces shall be energy-
dissipating as prescribed in Annex IV to this Regulation. Those parts within the reference zone
which satisfy both of the following conditions shall also be excluded from consideration if: (see
Annex X, explanatory notes, paragraph 5.1.2)

5.1.2.1.

during a test
pendulum makes contact with parts outside the reference zone; and

in accordance with the requirements of Annex IV of

this Regulation,

the

5.1.2.2.

the parts to be tested are placed less than 10 cm away from the parts contacted outside the
reference zone, this distance being measured on the surface of the reference zone;

any metal support fittings shall have no protruding edges.

5.1.3.

5.1.4.

5.1.5.

The lower edge of the instrument panel shall, unless it meets the requirements of paragraph
5.1.2 above, be rounded to a radius of curvature of not less than 19 mm. (see Annex X,
explanatory notes, paragraph 5.1.3)

Switches, pull-knobs and the like, made of rigid material, which, measured in accordance with
the method prescribed in Annex VI, project from 3,2 mm to 9,5 mm from the panel, shall
have a cross-sectional area of not less than 2 cm2, measured 2,5 mm from the point projecting
furthest, and shall have rounded edges with a radius of curvature of not less than 2,5 mm. (see
Annex X, explanatory notes, paragraph 5.1.4)

If these components project by more than 9,5 mm from the surface of the instrument panel,
they shall be so designed and constructed as to be able, under the effect of a longitudinal
horizontal force of 37.8 daN delivered by a flat-ended ram of not more than 50 mm diameter,
either to retract into the surface of the panel until they do not project by more than 9,5 mm or
to become detached; in the latter case, no dangerous projections of more than 9,5 mm shall
remain; a cross-section not more than 6,5 mm from the point of maximum projection shall be
not less than 6,5 cm2 in area. (see Annex X, explanatory notes, paragraph 5.1.5)

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5.1.6.

In the case of a projection comprising a component made of non-rigid material of less than 50
shore A hardness mounted on a rigid support, the requirements of paragraphs 5.1.4 and 5.1.5
shall apply only to the rigid support or it shall be demonstrated by sufficient tests according to
the procedure described in Annex IV that the soft material of less than 50 shore A hardness
will not be cut so as to contact the support during the specified impact test. In that case the
radius requirements shall not apply. (see Annex X, explanatory notes, paragraph 5.1.6)

5.1.7.

The following paragraphs shall apply:

5.1.7.1.

If the protective system of the vehicle type cannot prevent head contacts of the occupants
defined in paragraph 1.2.1. of Annex VIII with the instrument panel, and a dynamic reference
zone according to Annex VIII is determined, the requirements of paragraphs 5.1.2 to 5.1.6 are
applicable only to the parts located in that zone.

Parts in other areas of the dashboard above the level of the instrument panel, if contractable by
a 165 mm diameter sphere, shall be at least blunted.

5.1.7.2.

If the protective system of the vehicle type is able to prevent head contacts of the occupants
defined in paragraph 1.2.1 of Annex VIII with the instrument panel and therefore no reference
zone can be determined, the requirements of paragraphs 5.1.2 to 5.1.6 are not applicable to
this vehicle type.

Parts of the dashboard above the level of the instrument panel, if contractable by a 165 mm
diameter sphere, shall be at least blunted.

5.2.

Forward interior parts of the passenger compartment below the level of the instrument panel
and in front of the front seat ‘H’ points, excluding the side doors and the pedals.

5.2.1.

5.2.2.

Except for the pedals and their fixtures and those components that cannot be contacted by the
device described in Annex VII to this Regulation and used in accordance with the procedure
described therein, components covered by paragraph 5.2, such as switches, the ignition key, etc.
shall comply with the requirements of paragraphs 5.1.4 to 5.1.6 above.

The hand-brake control, if mounted on or under the instrument panel, shall be so placed that,
when it is in the position of rest there is no possibility of the occupants of the vehicle striking
against it in the event of a frontal impact. If this condition is not met, the surface area of the
control shall satisfy the requirements of paragraph 5.3.2.3 below. (see Annex X, explanatory
notes, paragraph 5.2.2)

5.2.3.

Shelves and other similar items shall be so designed and constructed that the supports in no
case have protruding edges, and they meet one or other of the following conditions: (see Annex
X, explanatory notes, paragraph 5.2.3)

5.2.3.1.

The part facing into the vehicle shall present a surface not less than 25 mm high with edges
rounded to a radius of curvature of not less than 3,2 mm. This surface shall consist of or be
covered with an energy-dissipating material as defined in Annex IV of this Regulation, and shall
be tested in accordance therewith,
longitudinal
direction. (see Annex X, explanatory notes, paragraph 5.2.3.1)

the impact being applied in a horizontal

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5.2.3.2.

long­
Shelves and other similar items shall, under the effect of a forward-acting horizontal
itudinal force of 37.8 daN exerted by a cylinder of 110 mm diameter with its axis vertical,
become detached, break up, be substantially distorted or retract without producing dangerous
features on the rim of the shelf. The force must be directed at the strongest part of the shelves
or other similar items. (see Annex X, explanatory notes, paragraph 5.2.3.2)

5.2.4.

If the items in question contain a part made of material softer than 50 shore A hardness when
fitted to a rigid support, the above requirements, except for the requirements covered by Annex
IV relating to energy absorption, shall apply only to the rigid support or it can be demonstrated
by sufficient tests according to the procedure described in Annex IV that the soft material of
less than 50 shore A hardness will not be cut so as to contact the support during the specified
impact test. In that case the radius requirements shall not apply.

5.3.

Other interior fittings in the passenger compartment in front of the transverse plane passing
through the torso reference line of the manikin placed on the rearmost seats. (see Annex X,
explanatory notes, paragraph 5.3)

5.3.1.

Scope

The requirements of paragraph 5.3.2 below apply to control handles, levers and knobs and to
(See also
any other protruding objects not referred to in paragraphs 5.1 and 5.2 above.
paragraph 5.3.2.2)

5.3.2.

Requirements

If the items referred to in paragraph 5.3.1 above are so placed that occupants of the vehicle can
contact them, they shall meet the requirements of paragraphs 5.3.2.1 to 5.3.4 If they can be
contacted by a 165 mm diameter sphere and are above the lowest ‘H’ point (see Annex V of
this Regulation) of the front seats and forward of the transverse plane of the torso reference line
of the manikin on the rearmost seat, and outside the zones defined in paragraphs 2.3.1 and
2.3.2, these requirements shall be considered to have been fulfilled if: (see Annex X, explanatory
notes, paragraph 5.3.2)

5.3.2.1.

their surface terminates in rounded edges, the radii of curvature being not less than 3,2 mm;
(see Annex X, explanatory notes, paragraph 5.3.2.1)

5.3.2.2.

5.3.2.3.

levers and knobs shall be so designed and constructed that, under the effect of a
control
forward-acting longitudinal horizontal force of 37.8 daN either the projection in its most
unfavourable position is reduced to not more than 25 mm from the surface of the panel or
the said fittings become detached or bent: in the two latter cases no dangerous projections shall
remain. Window winders may, however, project 35 mm from the surface of the panel; (see
Annex X, explanatory notes, paragraph 5.3.2.2)

the hand brake control when in the released position and the gear lever when in any forward
gear position, have, except when placed in the zones defined in paragraphs 2.3.1 and 2.3.2 and
in the zones below the horizontal plane passing through the ‘H’ point of the front seats, a
surface area of not less than 6 cm2 measured at a cross-section normal to the longitudinal
horizontal direction up to a distance of 6,5 mm from the part projecting furthest, the radius of
curvature being not less than 3,2 mm. (see Annex X, explanatory notes, paragraph 5.3.2.3)

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5.3.3.

5.3.4.

5.3.4.1.

5.3.5.

The requirements in paragraph 5.3.2.3 shall not apply to a floor-mounted handbrake control;
for such controls, if the height of any part in the released position is above a horizontal plane
passing through the ‘H’ point of the front seats (see Annex V of this Regulation) the control
shall have a cross-sectional area of at least 6,5 cm2 measured in a horizontal plane not more
than 6,5 mm from the furthest projecting part (measured in the vertical direction). The radius
of curvature shall not be less than 3,2 mm.

The other elements of the vehicle’s equipment not covered by the above paragraph, such as seat
slide rails, devices for regulating the horizontal or vertical part of the seat, devices for rolling up
safety belts, etc. are not subject to any regulation if they are situated below a horizontal line
passing through the ‘H’ point of each seat, even though the occupant is likely to come into
contact with such items. (see Annex X, explanatory notes, paragraph 5.3.4)

Components mounted on the roof but which are not part of the roof structure, such as grab
handles, lamps and sun visors, etc. shall have a radius of curvature not less that 3,2 mm. In
addition, the width of the projecting parts shall not be less than the amount of their downward
in
projection; alternatively,
accordance with the requirements of Annex IV. (see Annex X, explanatory notes, paragraph
5.3.4.1)

the energy-dissipating test

these projecting parts

shall pass

If the parts considered above comprise a component made of material of less than 50 shore A
hardness, mounted on a rigid support, the above requirements shall apply only to the rigid
support, or it can be demonstrated by sufficient tests according to the procedure described in
Annex IV that the soft material of less than 50 shore A hardness will not be cut so as to
contact the support during the specified impact test. In that case the radius requirements shall
not apply.

5.3.6.

In addition, power operated windows and partition systems and their controls shall meet the
requirements of paragraph 5.8 below.

5.4.

5.4.1.

Roof (see Annex X, explanatory notes, paragraph 5.4)

Scope

5.4.1.1.

The requirements of paragraph 5.4.2 below shall apply to the inner face of the roof.

5.4.1.2.

However, they shall not apply to such parts of the roof as cannot be contacted by a sphere 165
mm in diameter.

5.4.2.

Requirements

5.4.2.1.

That part of the inner face of the roof which is situated above or forward of the occupants shall
exhibit no dangerous roughness or sharp edges, directed rearwards or downwards. The width of
the projecting parts shall not he less than the amount of their downward projection and the
edges shall have a radius of curvature of not less than 5 mm. In particular, the rigid roof sticks
or ribs, with the exception of the header rail of the glazed surfaces and door frames, shall not
project downwards more than 19 mm. (see Annex X, explanatory notes, paragraph 5.4.2.1)

5.4.2.2.

If the roof sticks or ribs do not meet the requirements of paragraph 5.4.2.1, they shall pass the
energy-dissipating test in accordance with the requirement of Annex IV to this Regulation.

5.4.2.3.

The metal wires which stretch the lining of the roof and the frames of the sun visors shall have
a maximum diameter of 5 mm or be able to absorb the energy, as prescribed in Annex IV to
this Regulation. Non-rigid attachment elements of the frames of the sun visors shall meet the
requirements of paragraph 5.3.4.1 above.

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5.5.

5.5.1.

5.5.1.1.

Vehicles with an opening roof (see Annex X, explanatory notes, paragraph 5.5)

Requirements

The following requirements and those of paragraph 5.4 above shall apply to vehicles with an
opening roof when the roof is in the closed position.

5.5.1.2.

In addition, the opening and operating devices shall: (see Annex X, explanatory notes, para­
graphs 5.5.1.2, 5.5.1.2.1, and 5.5.1.2.2):

5.5.1.2.1.

be so designed and constructed as to exclude accidental or inopportune operation as far as
possible (see Annex X, explanatory notes, paragraphs 5.5.1.2, 5.5.1.2.1, and 5.5.1.2.2):

5.5.1.2.2.

their surfaces shall terminate in rounded edges, the radii of curvature being not less than 5 mm;
(see Annex X, explanatory notes, paragraphs 5.5.1.2, 5.5.1.2.1, and 5.5.1.2.2):

5.5.1.2.3.

be accommodated, when in the position of rest, in areas which cannot be contacted by a sphere
165 mm in diameter. If this condition cannot be met, the opening and operating devices shall,
in the position of rest, either remain retracted or be so designed and constructed that, under the
effect of a force of 37.8 daN applied in the direction of impact defined in Annex IV to this
Regulation as the tangent to the trajectory of the headform, either the projection as described in
Annex VI to this Regulation shall be reduced to not more than 25 mm beyond the surface on
which the devices are mounted or the devices shall become detached; in the latter case no
dangerous projections shall remain. (see Annex X, explanatory notes, paragraph 5.5.1.2.3).

5.5.2.

In addition, power-operated roof-panel systems and their controls shall meet the requirements
of paragraph 5.8 below.

5.6.

5.6.1.

5.7.

5.7.1.

5.7.1.1.

5.7.1.2.

Convertible vehicles (see Annex X, explanatory notes, paragraph 5.6)

In the case of convertible vehicles, only the underside of the top of the roll-bar and the top of
the windscreen frame in all its normal utilisation positions shall comply with the requirements
of paragraph 5.4. The system of folding rods or links used to support a non-rigid roof shall,
where they are situated above and forward of the occupants, exhibit no dangerous roughness or
sharp edges, directed downwards or rearwards. (see Annex X, explanatory notes, paragraph
5.6.1)

Rear parts of seats anchored to the vehicle

Requirements

The surface of the rear parts of seats shall exhibit no dangerous roughness or sharp edges likely
to increase the risk or severity of injury to the occupants. (see Annex X, explanatory notes,
paragraph 5.7.1.1).

Except as provided in paragraphs 5.7.1.2.1, 5.7.1.2.2, and 5.7.1.2.3 below, that part of the back
of the front seat which is in the head-impact zone, described in Annex 1 of this Regulation,
shall be energy-dissipating, as prescribed in Annex IV to this Regulation. For determining the
head-impact zone the front seats shall, if they are adjustable, be in the rearmost driving position
with their backs inclined as near as possible to 25 ° unless indicated otherwise by the manu­
facturer. (see Annex X, explanatory notes, paragraph 5.7.1.2).

5.7.1.2.1.

In the case of separate front seats, the rear passengers’ head-impact zone shall extend for 10 cm
on either side of the seat centre-line, in the top part of the rear of the seat-back.

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5.7.1.2.1.1. In the case of seats fitted with head-restraints each test shall be carried out with the head-
restraint in the lowest position and at a point situated on the vertical line passing through the
centre of the head-restraint.

5.7.1.2.1.2. In the case of a seat which is designed to be fitted in several types of vehicle, the impact zone
shall be determined by the vehicle whose rearmost driving position is, of each of the types
considered, the least favourable; the resultant impact zone will be deemed adequate for the
other types.

5.7.1.2.2.

In the case of front bench seats, the impact zone shall extend between the longitudinal vertical
planes 10 cm outboard of the centre line of each designated outboard seating position. The
centre line of each outboard seating position of a bench seat shall be specified by the manu­
facturer.

5.7.1.2.3.

In the head impact zone outside the limits prescribed in paragraphs 5.7.1.2.1 to 5.7.1.2.2,
inclusive, the seat frame structure shall be padded to avoid direct contact of the head with it:
and, in these zones, shall have a radius of curvature of at least 5 mm. These parts may satisfy
the energy dissipation requirements specified in Annex IV to this Regulation. (see Annex X,
explanatory notes, paragraph 5.7.1.2.3).

5.7.2.

5.7.3.

5.8.

5.8.1.

These requirements shall not apply to the rearmost seats, to seats facing sideways or rearwards,
to back-to-back seats or to folding (tip-up) seats. If the impact zones of the seats, head-
restraints and their supports contain parts covered with material softer than 50 shore A
hardness, the above requirements, with the exception of those relating to energy dissipation
described in Annex IV to this Regulation, shall apply only to the rigid parts.

The requirements of paragraph 5. 7 shall be considered to be satisfied in the case of rear parts
of seats that are part of a vehicle type approved under Regulation No 17 (03 series of
amendments or later).

Power-operation of windows, roof-panel systems and partition systems

The requirements below apply to power-operation of windows/roof-panel systems/partition
systems to minimize the possibility of injuries caused by accidental or improper operation.

5.8.2.

Normal operating requirements

Except as provided in paragraph 5.8.3, power-operated windows/roof-panel systems/ partition
systems may be closed under one or more of the following conditions:

5.8.2.1.

when the ignition key is inserted in the ignition control
equivalent condition in case of a non mechanical device;

in any position of use or in an

5.8.2.2.

when the power key has been used to activate the power supply to the power operated
windows, partitions or roof panel systems;

5.8.2.3.

by muscular force unassisted by power supply of the vehicle;

5.8.2.4.

on continuous activation of a closing system located on the exterior of the vehicle;

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5.8.2.5.

during the interval of time between the moment the ignition has been switched off or the
ignition key has been removed, or an equivalent condition has happened in case of a non-
mechanical device, and the moment that neither of the two front doors has been opened
sufficiently to permit egress of occupants;

5.8.2.6.

when the closing movement of a power-operated window, roof panel or partition starts at an
opening not exceeding 4 mm;

5.8.2.7.

when the power-operated window of a vehicle’s door without an upper door frame closes
automatically whenever the pertinent door is closed. In this case the maximum opening, as
defined in paragraph 2.15, prior to window closing, shall not exceed 12 mm.

5.8.2.8.

Remote closing shall be allowed by continuous activation of a remote actuation device,
provided one of the following conditions is fulfilled:

5.8.2.8.1.

the operation distance between the actuation device and the vehicle shall not exceed 6 m;

5.8.2.8.2.

the operation distance between the actuation device and the vehicle shall not exceed 11 m,
provided that the system requires a direct line of sight between the actuation device and the
vehicle. This may be tested by placing an opaque surface between the actuation device and the
vehicle.

5.8.2.9.

One-touch closing shall be permitted only for the power-operated window of the driver’s door
and the roof panel, and only during the time when the ignition key is in the engine running
position. It is also allowed when the engine has been switched off or the ignition key/power
key has been removed, or an equivalent condition has happened in case of a non-mechanical
device, as long as neither of the two front doors has been opened sufficiently to permit egress
of occupants.

5.8.3.

Auto-reversing requirements

5.8.3.1.

None of the requirements in paragraph 5.8.2 shall apply, if a power-operated window/roof
panel system/partition system is fitted with an auto-reversing device.

5.8.3.1.1.

This device shall reverse the window/roof panel/partition before it exerts a pinch force of more
than 100 N within the opening of 200 mm to 4 mm above the top edge of a power-operated
window/partition or in front of the leading edge of a sliding roof panel and at the trailing edge
of a tilting roof panel.

5.8.3.1.2. After such an auto-reversal, the window or roof panel or partition shall open to one of the

following positions:

5.8.3.1.2.1. a position that permits a semi-rigid cylindrical rod of a diameter of 200 mm to be placed
through the opening at the same contact point(s) used to determine the reversing behaviour in
paragraph 5.8.3.1.1;

5.8.3.1.2.2. a position that represents at least the initial position before closing was initiated;

5.8.3.1.2.3. a position at least 50 mm more open than the position at the time when reversing was

initiated;

5.8.3.1.2.4.

in the case of tilting motion of a roof panel, the maximum angular opening.

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5.8.3.1.3.

To check power-operated windows/roof-panel systems/partition systems with reversing devices
as per paragraph 5.8.3.1.1, a measuring instrument/test rod shall be placed through the
opening from the inside through to the exterior of the vehicle or, in the case of a partition
system, from the rear part of the passenger compartment in such a way that the cylindrical
surface of the rod contacts any part of the vehicle structure which forms the boundary of the
window/roof-panel partition aperture. The force deflection ratio of the measuring instrument
shall be 10 ± 0.5 N/mm. The positions of the test rod (normally located perpendicular to the
edge of the window/roof panel/partition and perpendicular to the closing direction) are illu­
strated in Figure 1 of Annex IX to this Regulation. The position of the test rod relative to the
edge and the closing direction shall be kept throughout the test.

5.8.4.

Switch location and operation

5.8.4.1.

Switches of power-operated windows/roof panels/partitions shall be located or operated in such
a way to minimize the risk of accidental closing. The switches shall require continuous
actuation for closing except in the case of paragraphs 5.8.2.7, 5.8.2.9 or 5.8.3.

5.8.4.2.

All rear-window, roof-panel and partition switches intended for use by occupants in the rear of
the vehicle shall be capable of being switched off by a driver-controlled switch which is located
forward of a vertical transverse plane passing through the R points of the front seats. The driver
controlled switch is not required if a rear window, roof panel or partition is equipped with an
auto-reversing device. If, however, the driver-controlled switch is present, it shall not be able to
override the auto-reversing device or prevent lowering of the partition system.

The driver-controlled switch shall be located so as to minimize any accidental manipulating. It
shall be identified by the symbol shown in Figure 2 of Annex 9 to this Regulation or an
equivalent symbol, for example according to ISO 2575:1998 reproduced in Figure 3 of An-
nex IX to this Regulation.

5.8.5.

Protection devices

All protection devices which are used to prevent damage to the power source in the case of an
overload or stalling shall reset themselves after the overload or the automatic switch off. After
resetting of the protection devices, the motion in the closing direction shall not resume without
a deliberate action on the control device.

5.8.6.

5.8.6.1.

Handbook instructions
The owner’s manual of the vehicle shall contain clear instructions relating to the power-
operated window/roof panel/partition, including:

5.8.6.1.1.

explanation of possible consequences (entrapment).

5.8.6.1.2.

use of the driver-controlled switch.

5.8.6.1.3.

a ‘WARNING’ message indicating the dangers, particularly to children in the case of improper
use/activation of the power-operated windows/roof-panel systems/partition systems. This infor­
mation should indicate the responsibilities of
including instructions for other
occupants and the recommendation to leave the vehicle only if the ignition key/power key
has been removed, or an equivalent condition has happened in case of a non mechanical
device.

the driver,

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5.8.6.1.4.

a ‘WARNING’ message indicating that special care should be taken when using remote closing
systems (see paragraph 5.8.2.8), for example to actuate it only when the operator has a clear
view of the vehicle to be sure that nobody can be trapped by power-operated windows/roof-
panel/partition equipment.

5.8.7.

5.9.

5.9.1.

If a power-operated window, roof-opening and/or partition system is installed in a vehicle that
can not be tested according to the test procedures mentioned above the approval may be
granted if the manufacturer can demonstrate an equal or improved protection-effect for the
occupants.

Other non-specified fittings

The requirements of paragraph 5 shall apply to such fittings not mentioned in previous
paragraphs which, within the meaning of the various requirements in paragraphs 5.1 to 5.7
and according to their location in the vehicle, are capable of being contacted by the occupants.
If such parts are made of a material of less than 50 shore A hardness, mounted on a rigid
support, the requirements in question shall apply only to the rigid support, or it can be
demonstrated by sufficient tests according to the procedure described in Annex IV that the
soft material of less than 50 shore A hardness will not be cut during the specified impact test.
In that case the required radius shall apply to the soft surface only.

5.9.2.

For parts like a centre console, for example, or other components of the vehicle which belong
to 5.9.1, it is not necessary to perform an energy dissipation test according to Annex IV to any
component contactable by the device and procedure specified in Annex I if:

in the opinion of
component, because of the restraint system(s) installed in the vehicle; or

the Technical Service the occupant’s head is unlikely to contact

the

because the manufacturer can prove the lack of such contact using, for example, the method
described in Annex VIII, or any equivalent method.

6.

6.1.

MODIFICATIONS AND EXTENSION OF APPROVAL OF THE VEHICLE TYPE

Every modification of the vehicle type shall be notified to the administrative department which
approved the vehicle type. The department may then either:

6.1.1.

consider that the modifications made are unlikely to have an appreciable adverse effect and that
in any case the vehicle still complies with the requirements; or

6.1.2.

require a further test report from the technical service responsible for conducting the tests.

6.2.

6.3.

7.

7.1.

Confirmation or refusal of approval, specifying the alterations, shall be communicated by the
procedure specified in paragraphs 4.3 above to the Parties to the Agreement which apply this
Regulation.

The competent authority issuing the extension of approval shall assign a series number for such
an extension and inform thereof the other Parties to the 1958 Agreement applying this
Regulation by means of a communication form conforming to the model
in Annex II to
this Regulation.

CONFORMITY OF PRODUCTION

Every vehicle bearing an approval mark as prescribed under this Regulation shall conform to
the vehicle type approved.

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7.2.

7.3.

8.

8.1.

8.2.

In order to verify conformity as prescribed in paragraph 7.1 above, a vehicle bearing the
approval mark required by this Regulation shall be taken from the series.

Production shall be deemed to conform to the requirements of
requirements of paragraph 5 above are met.

this Regulation if

the

PENALTIES FOR NON-CONFORMITY OF PRODUCTION

to this Regulation, may be
The approval granted in respect of a vehicle type pursuant
withdrawn if the requirement laid down in paragraph 7 above is not complied with, or if
the vehicle fails to pass the checks prescribed in paragraph 7 above.

If a Party to the Agreement which applies this Regulation withdraws an approval
previously granted,
Regulation by means of a communication form conforming to the model
this Regulation.

it has
it shall forthwith so notify the other Contracting Parties applying this
in Annex II to

9.

PRODUCTION DEFINITELY DISCONTINUED

If the holder of the approval completely ceases to manufacture a type of vehicle under this
Regulation, he shall inform thereof the authority which granted the approval. Upon receiving
the relevant communication that authority shall
inform the other Parties to the Agreement
which apply this Regulation thereof by means of a communication form conforming to the
model in Annex II to this Regulation.

10.

NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL
TESTS, AND OF ADMINISTRATIVE DEPARTMENTS

the names and addresses of

The Parties to the Agreement applying this Regulation shall communicate to the United Nations
Secretariat
the technical services responsible for conducting
approval tests and of the administrative departments which grant approval and to which
forms certifying approval or refusal or withdrawal of approval, issued in other countries, are
to be sent.

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ANNEX I

Determination of the head-impact zone

1.

The head-impact zone comprises all the non-glazed surfaces of the interior of a vehicle which are capable of
entering into static contact with a spherical head 165 mm in diameter that is an integral part of a measuring
apparatus whose dimension from the pivotal point of the hip to the top of the head is continuously adjustable
between 736 mm and 840 mm.

2.

The aforesaid zone shall be determined by the following procedure or its graphic equivalent:

2.1.

The pivotal point of the measuring apparatus shall be placed as follows for each seating position for which the
manufacturer has made provision:

2.1.1.

in the case of sliding seats

2.1.1.1. at the ‘H’ point (see Annex V), and

2.1.1.2. at a point situated horizontally 127 mm forward of the ‘H’ point and either at a height resulting from the
variation in the height of the ‘H’ point caused by a forward shift of 127 mm or of 19 mm. (see Annex X,
explanatory notes to paragraph 2.1.1.2 of Annex I).

2.1.2.

in the case of non-sliding seats:

2.1.2.1. at the ‘H’ point of the seat considered.

2.2.

All points of contact situated forward of the ‘H’ point shall be determined for each dimension from the pivoted
point to the top of the head capable of being measured by the measuring apparatus within the interior
dimensions of the vehicle. (see Annex X, explanatory notes to paragraph 2.2 of Annex I).

2.2.1.

In the case where the headform, with the arm set at minimum length, overlaps the front seat, from the rear ‘H’
point, no contact point is established for this particular operation.

2.3.

With the measuring apparatus vertical, possible points of contact shall he determined by pivoting it forwards and
downwards through all arcs of vertical planes as far as 90° on either side of the longitudinal vertical plane of the
vehicle which passes through the ‘H’ point.

2.3.1.

To determine the points of contact, the length of the arm of the measuring apparatus shall not be changed
during any given excursion. Each excursion shall start from a vertical position.

3.

A ‘point of contact’ is a point at which the head of the apparatus touches a part of the interior of the vehicle.
The maximum downward movement shall be downward movement to a position where the head is tangential to
a horizontal plane situated 25,4 mm above the ‘H’ point.

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ANNEX II

COMMUNICATION

(maximum format: A4 (210 × 297 mm))

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ANNEX III

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 its interior
fittings, been approved in the Netherlands (E4) under the number 012349. The first two digits of the approval number
indicate that the approval was granted in accordance with the requirements of Regulation No 21 as amended by the 01
series of amendments.

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 Regulations Nos 21 and 33 (1). The first two digits of the approval numbers indicate
that, on the date on which these approvals were granted, Regulation No 21 included the 01 series of amendments and
Regulation No 33 was still in its original form.

(1) The second number is given merely as an example.

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ANNEX IV

Procedure for testing energy dissipating materials

1.

SETTING UP; TEST APPARATUS; PROCEDURE

1.1.

Setting up

1.1.1.

The component made of energy-dissipating materials shall be mounted and tested on the structural supporting
member on which it is to be installed on the vehicle. The test shall preferably be carried out, where possible,
directly on the body. The structural member, or the body, shall be firmly attached to the test bench so that it
does not move under impact.

1.1.2. However, at the manufacturer’s request, the item may be mounted on a fitting simulating installation on the
vehicle, on condition that the assembly comprising the component and the fitting has the same geometrical
arrangement as, and a degree of rigidity not lower and an energy-dissipating capacity not higher than those of
the real assembly comprising the component and the structural supporting member.

1.2.

Test apparatus

1.2.1.

This apparatus consists of a pendulum whose pivot is supported by ball-bearings and whose reduced mass (1) at
its centre of percussion is 6,8 kg. The lower extremity of the pendulum consists of a rigid headform 165 mm in
diameter whose centre is identical with the centre of percussion of the pendulum.

1.2.2.

The headform shall be fitted with two accelerometers and a speed transducer, all capable of measuring values in
the direction of impact.

1.3.

Recording instruments

The recording instruments used shall be such that measurements can be made with the following degrees of
accuracy:

1.3.1. Acceleration:

accuracy = ± 5 % of the real value;

frequency response = up to 1 000 Hz

cross axis sensitivity = > 5 % of the lowest point on the scale.

1.3.2.

Speed:

accuracy = ± 2,5 % of the real value

sensitivity = 0,5 km/h

1.3.3.

Time recording:

the instrumentation shall enable the action to be recorded throughout its duration and readings to be made to
within one thousandth of a second;

the beginning of the impact at the moment of first contact between the headform and the test component shall
be noted on the recordings used for analysing the test.

1.4.

Test procedure (see Annex X, explanatory notes to paragraph 1.4 of Annex IV)

1.4.1. At every point of impact on the surface to be tested, the direction of impact is the tangent to the trajectory of

the headform of the measuring apparatus described in Annex I.

(1) The relationship of the reduced mass ‘m’

r of the pendulum to the total mass ‘m’ of the pendulum at a distance ‘a’ between the centre of
percussion and the axis of rotation and at a distance ‘l’ between the centre of gravity and the axis of rotation is given by the formula:
Mr = (m.l)/a.

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1.4.1.1. For testing the parts, as referred to in paragraphs 5.3.4.1 and 5.4.2.2 of this Regulation, the arm of the
measuring apparatus shall be lengthened until contact is made with the part to be considered, up to a limit
of 1 000 mm between the pivot point and the top of the head of the apparatus. However, any roof sticks or ribs
referred to in paragraph 5.4.2.2 which cannot be contacted shall remain subject to the requirements of paragraph
5.4.2.1 of this Regulation, with the exception of that relating to the height of the projection.

1.4.2. Where the angle between the direction of impact and the perpendicular to the surface at the point of impact is
5 ° or less, the test shall be carried out in such a way that the tangent to the trajectory of the centre of
percussion of
impact. The headform shall strike the test
component at a speed of 24,1 km/h or, in the case of components which cover an uninflated airbag, at a
speed of 19,3 km/h; this speed shall be achieved either by the mere energy of propulsion or by using an
additional impelling device.

the pendulum coincides with the direction of

1.4.3. Where the angle between the direction of impact and the perpendicular to the surface at the point of impact is
more than 5 °, the test may be carried out in such a way that the tangent to the trajectory of the centre of
percussion of the pendulum coincides with the perpendicular to the point of impact. The test speed shall then be
reduced to the value of the normal component of the speed prescribed in paragraph 1.4.2.

2.

2.1.

3.

3.1.

3.2.

RESULTS

In tests carried out according to the above procedures, the deceleration of the headform shall not exceed 80 g
continuously for more than 3 milliseconds. The deceleration rate taken shall be the average of the readings of the
two decelerometers.

EQUIVALENT PROCEDURES

Equivalent test procedures shall be permitted, on condition that the results required in paragraph 2 above can be
obtained.

Responsibility for demonstrating the equivalence of a method other than that described in paragraph 1 shall rest
with the person using such a method.

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ANNEX V

Procedure for determining the ‘H’ point and the actual torso angle for seating positions in motor vehicles

1.

PURPOSE
The procedure described in this Annex is used to establish the ‘H’ point location and the actual torso angle for
one or several seating positions in a motor vehicle and to verify the relationship of measured data to design
specifications given by the vehicle manufacturer (1)

2.

DEFINITIONS

For the purposes of this Annex:

2.1.

‘Reference data’ means one or several of the following characteristics of a seating position:

2.1.1.

the ‘H’ point and the ‘R’ point and their relationship,

2.1.2.

the actual torso angle and the design torso angle and their relationship.

2.2.

2.3.

2.4.

2.5.

2.6.

2.7.

2.8.

‘Three-dimensional “H” point machine’ (3-D H machine) means the device used for the determination of ‘H’
points and actual torso angles. This device is described in Appendix 1 to this Annex;

‘“H” point’ means the pivot centre of the torso and the thigh of the 3-D H machine installed in the vehicle seat in
accordance with paragraph 4 below. The ‘H’ point is located in the centre of the centreline of the device which is
between the ‘H’ point sight buttons on either side of the 3-D H machine. The ‘H’ point corresponds theoretically
to the ‘R’ point (for tolerances see paragraph 3.2.2. below). Once determined in accordance with the procedure
described in paragraph 4, the ‘H’ point is considered fixed in relation to the seat-cushion structure and to move
with it when the seat is adjusted;

‘“R” point’ or ‘seating reference point’ means a design point defined by the vehicle manufacturer for each seating
position and established with respect to the three-dimensional reference system;

‘Torso-line’ means the centreline of the probe of the 3-D H machine with the probe in the fully rearward
position;

‘Actual torso angle’ means the angle measured between a vertical line through the ‘H’ point and the torso line
using the back angle quadrant on the 3-D H machine. The actual torso angle corresponds theoretically to the
design torso angle (for tolerances see paragraph 3.2.2. below);

‘Design torso angle’ means the angle measured between a vertical line through the ‘R’ point and the torso line in
a position which corresponds to the design position of the seat-back established by the vehicle manufacturer;

‘Centreplane of occupant’ (C/LO) means the median plane of the 3-D H machine positioned in each designated
seating position; it is represented by the coordinate of the ‘H’ point on the ‘Y’ axis. For individual seats, the
centreplane of the seat coincides with the centreplane of the occupant. For other seats, the centreplane of the
occupant is specified by the manufacturer;

2.9.

‘Three-dimensional reference system’ means a system as described in Appendix 2 to this Annex;

2.10.

‘Fiducial marks’ are physical points (holes, surfaces, marks or indentations) on the vehicle body as defined by the
manufacturer;

2.11.

‘Vehicle measuring attitude’ means the position of the vehicle as defined by the coordinates of fiducial marks in
the three-dimensional reference system.

(1) In any seating position other than front seats where the ‘H’ point cannot be determined using the ‘Three-dimensional “H” point
machine’ or procedures, the ‘R’ point indicated by the manufacturer may be taken as a reference at the discretion of the competent
authority.

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3.

REQUIREMENTS

3.1.

Data presentation

For each seating position where reference data are required in order to demonstrate compliance with the
provisions of the present Regulation, all or an appropriate selection of the following data shall be presented
in the form indicated in Appendix 3 to this Annex:

3.1.1.

the coordinates of the ‘R’ point relative to the three-dimensional reference system;

3.1.2.

the design torso angle;

3.1.3.

all indications necessary to adjust the seat (if it is adjustable) to the measuring position set out in paragraph 4.3.
below.

3.2.

3.2.1.

Relationship between measured data and design specifications
The coordinates of the ‘H’ point and the value of the actual torso angle obtained by the procedure set out in
paragraph 4. below shall be compared, respectively, with the coordinates of the ‘R’ point and the value of the
design torso angle indicated by the vehicle manufacturer.

3.2.2.

The relative positions of the ‘R’ point and the ‘H’ point and the relationship between the design torso angle and
the actual torso angle shall be considered satisfactory for the seating position in question if the ‘H’ point, as
defined by its coordinates, lies within a square of 50 mm side length with horizontal and vertical sides whose
diagonals intersect at the ‘R’ point, and if the actual torso angle is within 5° of the design torso angle.

3.2.3.

If these conditions are met, the ‘R’ point and the design torso angle, shall be used to demonstrate compliance
with the provisions of this Regulation.

3.2.4.

If the ‘H’ point or the actual torso angle does not satisfy the requirements of paragraph 3.2.2. above, the ‘H’
point and the actual torso angle shall be determined twice more (three times in all). If the results of two of these
three operations satisfy the requirements, the conditions of paragraph 3.2.3. above shall apply.

3.2.5.

If the results of at least two of the three operations described in paragraph 3.2.4. above do not satisfy the
requirements of paragraph 3.2.2. above, or if the verification cannot take place because the vehicle manufacturer
has failed to supply information regarding the position of the ‘R’ point or regarding the design torso angle, the
centroid of the three measured points or the average of the three measured angles shall be used and be regarded
as applicable in all cases where the ‘R’ point or the design torso angle is referred to in this Regulation.

4.

4.1.

PROCEDURE FOR ‘H’ POINT AND ACTUAL TORSO ANGLE DETERMINATION (see Annex X, explanatory
notes to paragraph 4. of Annex V)

The vehicle shall be preconditioned at the manufacturer's discretion, at a temperature of 20 ± 10 °C to ensure
that the seat material reached room temperature. If the seat to be checked has never been sat upon, a 70 to 80
kg person or device shall sit on the seat twice for one minute to flex the cushion and back. At the manufacturer's
request, all seat assemblies shall remain unloaded for a minimum period of 30 min. prior to installation of the 3-
D H machine.

4.2.

The vehicle shall be at the measuring attitude defined in paragraph 2.11. above.

4.3.

The seat, if it is adjustable, shall be adjusted first to the rearmost normal driving or riding position, as indicated
by the vehicle manufacturer, taking into consideration only the longitudinal adjustment of the seat, excluding
seat travel used for purposes other than normal driving or riding positions. Where other modes of seat
adjustment exist (vertical, angular, seat-back, etc.) these will then be adjusted to the position specified by the
vehicle manufacturer. For suspension seats, the vertical position shall be rigidly fixed corresponding to a normal
driving position as specified by the manufacturer.

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4.4.

4.5.

4.6.

The area of the seating position contacted by the 3-D H machine shall be covered by a muslin cotton, of
sufficient size and appropriate texture, described as a plain cotton fabric having 18,9 threads per cm and
weighing 0,228 kg/m2 or knitted or non-woven fabric having equivalent characteristics. If test is run on a
seat outside the vehicle, the floor on which the seat is placed shall have the same essential characteristics (1) as
the floor of the vehicle in which the seat is intended to be used.

Place the seat and back assembly of the 3-D H machine so that the centreplane of the occupant (C/LO) coincides
with the centreplane of the 3-D H machine. At the manufacturer's request, the 3-D H machine may be moved
inboard with respect to the C/LO if the 3-D H machine is located so far outboard that the seat edge will not
permit levelling of the 3-D H machine.

Attach the foot and lower leg assemblies to the seat pan assembly, either individually or by using the T-bar and
lower leg assembly. A line through the ‘H’ point sight buttons shall be parallel to the ground and perpendicular
to the longitudinal centreplane of the seat.

4.7.

Adjust the feet and leg positions of the 3-D H machine as follows:

4.7.1. Designated seating position: driver and outside front passenger

4.7.1.1. Both feet and leg assemblies shall be moved forward in such a way that the feet take up natural positions on the
floor, between the operating pedals if necessary. Where possible the left foot shall be located approximately the
same distance to the left of the centreplane of the 3-D H machine as the right foot is to the right. The spirit level
verifying the transverse orientation of the 3-D H machine is brought to the horizontal by readjustment of the
seat pan if necessary, or by adjusting the leg and foot assemblies towards the rear. The line passing through the
‘H’ point sight buttons shall be maintained perpendicular to the longitudinal centreplane of the seat.

4.7.1.2. If the left leg cannot be kept parallel to the right leg and the left foot cannot be supported by the structure, move

the left foot until it is supported. The alignment of the sight buttons shall be maintained.

4.7.2. Designated seating position: outboard rear

For rear seats or auxiliary seats, the legs are located as specified by the manufacturer. If the feet then rest on parts
of the floor which are at different levels, the foot which first comes into contact with the front seat shall serve as
a reference and the other foot shall be so arranged that the spirit level giving the transverse orientation of the
seat of the device indicates the horizontal.

4.7.3. Other designated seating positions:

The general procedure indicated in paragraph 4.7.1 above shall be followed except that the feet shall be placed as
specified by the vehicle manufacturer.

4.8.

Apply lower leg and thigh weights and level the 3-D H machine.

4.9.

Tilt the back pan forward against the forward stop and draw the 3-D H machine away from the seat-back using
the T-bar. Reposition the 3-D H machine on the seat by one of the following methods:

4.9.1.

If the 3-D H machine tends to slide rearward, use the following procedure. Allow the 3-D H machine to slide
rearward until a forward horizontal restraining load on the T-bar is no longer required i.e. until the seat pan
contacts the seat-back. If necessary, reposition the lower leg.

4.9.2.

If the 3-D H machine does not tend to slide rearward, use the following procedure. Slide the 3-D H machine
rearwards by applying a horizontal rearward load to the T-bar until the seat pan contacts the seat-back (see
figure 2 of Appendix 1 to this Annex).

(1) Tilt angle, height difference with a seat mounting, surface texture etc.

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4.10.

4.11.

4.12.

Apply a 100 ± 10 N load to the back and pan assembly of the 3-D H machine at the intersection of the hip
angle quadrant and the T-bar housing. The direction of load application shall be maintained along a line passing
by the above intersection to a point just above the thigh bar housing (see figure 2 of Appendix 1 to this Annex).
Then carefully return the back pan to the seat-back. Care must be exercised throughout the remainder of the
procedure to prevent the 3-D H machine from sliding forward.

Install the right and left buttock weights and then, alternately, the eight torso weights. Maintain the 3-D H
machine level.

Tilt the back pan forward to release the tension on the seat-back. Rock the 3-D H machine from side to side
through a 10° arc (5° to each side of the vertical centreplane) for three complete cycles to release any accu­
mulated friction between the 3-D H machine and the seat.

During the rocking action, the T-bar of the 3-D H machine may tend to diverge from the specified horizontal
and vertical alignment. The T-bar must therefore be restrained by applying an appropriate lateral load during the
rocking motions. Care shall be exercised in holding the T-bar and rocking the 3-D H machine to ensure that no
inadvertent exterior loads are applied in a vertical or fore and aft direction.

The feet of the 3-D H machine are not to be restrained or held during this step. If the feet change position, they
should be allowed to remain in that attitude for the moment.

Carefully return the back pan to the seat-back and check the two spirit levels for zero position. If any movement
of the feet has occurred during the rocking operation of the 3-D H machine, they must be repositioned as
follows:

Alternately, lift each foot off the floor the minimum necessary amount until no additional foot movement is
obtained. During this lifting, the feet are to be free to rotate; and no forward or lateral loads are to be applied.
When each foot is placed back in the down position, the heel is to be in contact with the structure designed for
this.

Check the lateral spirit level for zero position; if necessary, apply a lateral load to the top of the back pan
sufficient to level the 3-D H machine's seat pan on the seat.

4.13.

Holding the T-bar to prevent the 3-D H machine from sliding forward on the seat cushion, proceed as follows:

(a) return the back pan to the seat-back;

(b) alternately apply and release a horizontal rearward load, not to exceed 25 N, to the back angle bar at a
height approximately at the centre of the torso weights until the hip angle quadrant indicates that a stable
position has been reached after load release. Care shall be exercised to ensure that no exterior downward or
loads are applied to the 3-D H machine. If another level adjustment of the 3-D H machine is
lateral
necessary, rotate the back pan forward, re-level, and repeat the procedure from paragraph 4.12.

4.14.

Take all measurements:

4.14.1. The coordinates of the ‘H’ point are measured with respect to the three-dimensional reference system.

4.14.2. The actual torso angle is read at the back angle quadrant of the 3-D H machine with the probe in its fully

rearward position.

4.15.

4.16.

If a re-run of the installation of the 3-D H machine is desired, the seat assembly should remain unloaded for a
minimum period of 30 min. prior to the re-run. The 3-D H machine should not be left loaded on the seat
assembly longer than the time required to perform the test.

If the seats in the same row can be regarded as similar (bench seat, identical seats, etc.) only one ‘H’ point and
one ‘actual torso angle’ shall be determined for each row of seats, the 3-D H machine described in Appendix 1 to
this Annex being seated in a place regarded as representative for the row. This place shall be:

4.16.1.

in the case of the front row, the driver's seat;

4.16.2.

in the case of the rear row or rows, an outer seat.

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Appendix 1

Description of the three dimensional ‘H’ point machine (1)

(3-D H machine)

1. Back and seat pans

The back and seat pans are constructed of reinforced plastic and metal; they simulate the human torso and thigh and
are mechanically hinged at the ‘H’ point. A quadrant is fastened to the probe hinged at the ‘H’ point to measure the
actual torso angle. An adjustable thigh bar, attached to the seat pan, establishes the thigh centreline and serves as a
baseline for the hip angle quadrant.

2. Body and leg elements

Lower leg segments are connected to the seat pan assembly at the T-bar joining the knees, which is a lateral extension
of the adjustable thigh bar. Quadrants are incorporated in the lower leg segments to measure knee angles. Shoe and
foot assemblies are calibrated to measure the foot angle. Two spirit levels orient the device in space. Body element
weights are placed at the corresponding centres of gravity to provide seat penetration equivalent to a 76 kg male. All
joints of the 3-D H machine should be checked for free movement without encountering noticeable friction.

Figure 1

3-D H machine elements designation

(1) For details of the construction of the 3-D H machine refer to Society of Automobile Engineers (SAE), 400 Commonwealth Drive,

Warrendale, Pennsylvania 15096, United States of America.
The machine corresponds to that described in ISO Standard 6549-1980.

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Dimensions of the 3-D H machine elements and load distribution

Figure 2

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Appendix 2

Three-dimensional reference system

1. The three-dimensional reference system is defined by three orthogonal planes established by the vehicle manufacturer

(see figure) (1).

2. The vehicle measuring attitude is established by positioning the vehicle on the supporting surface such that the

coordinates of the fiducial marks correspond to the values indicated by the manufacturer.

3. The coordinates of the ‘R’ point and the ‘H’ point are established in relation to the fiducial marks defined by the

vehicle manufacturer.

Figure

Three-dimensional reference system

(1) The reference system corresponds to ISO standard 4130, 1978.

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Appendix 3

REFERENCE DATA CONCERNING SEATING POSITIONS

1.

Coding of reference data

Reference data are listed consecutively for each seating position. Seating positions are identified by a two-digit
code. The first digit is an Arabic numeral and designates the row of seats, counting from the front to the rear of
the vehicle. The second digit is a capital letter which designates the location of the seating position in a row, as
viewed in the direction of forward motion of the vehicle; the following letters shall be used:

L = left

C = centre

R = right

2.

Description of vehicle measuring attitude:

2.1.

Coordinates of fiducial marks

X

Y

Z

................................................................................................................................................................................................................

................................................................................................................................................................................................................

................................................................................................................................................................................................................

3.

List of reference data:

Seating position:.........................................................................................................................................................................................

3.1.
3.1.1. Coordinates of ‘R’ point

X

Y

Z

................................................................................................................................................................................................................

................................................................................................................................................................................................................

................................................................................................................................................................................................................

3.1.2. Design torso angle: ...................................................................................................................................................................................

3.1.3. Specifications for seat adjustment (1):

horizontal:

.....................................................................................................................................................................................

vertical:

angular:

.....................................................................................................................................................................................

.....................................................................................................................................................................................

torso angle:

.....................................................................................................................................................................................

Note: List reference data for further seating positions under 3.2., 3.3., etc.

(1) Strike out what does not apply.

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ANNEX VI

Method of measuring projections

1.

1.1.

2.

To determine the amount by which an item projects in relation to the panel on which it is mounted, a 165 mm
sphere shall be moved along and be kept in contact with the component under consideration, starting from the
initial position of contact with the component under consideration. The projections value is the largest of all
possible variations ‘y’, the variation measured from the centre of the sphere perpendicular to the panel and the ‘x’
variation measured from the centre of the sphere perpendicular to the panel.

If the panels and components, etc., are covered with materials softer than 50 shore A hardness, the procedure for
measuring the projections described above shall apply only after removal of such materials.

The projection of switches, pull-knobs, etc., situated in the reference area shall be measured by using the test
apparatus and procedure described below:

2.1.

Apparatus

2.1.1.

The apparatus for measuring projections shall consist of a hemispherical headform 165 mm in diameter, in
which there is a sliding ram of 50 mm diameter.

2.1.2.

Relative positions of the flat end of the ram and the edge of the headform shall be shown on a graduated scale,
on which a mobile index shall register the maximum measurement achieved when the apparatus is moved away
from the item tested. A minimum distance of 30 mm shall be measurable; the measuring scale shall be graduated
in half-millimeters to make possible an indication of the extent of the projections in question.

2.1.3. Gauging procedure:

2.1.3.1. The apparatus shall be placed on a flat surface so that its axis is perpendicular to that surface. When the flat end

of the ram contacts the surface, the scale shall be set at zero.

2.1.3.2. A 10 mm strut shall be inserted between the flat end of the ram and the retaining surface; a check shall be made

to ensure that the mobile index records this measurement.

2.1.4.

The apparatus for measuring projections is illustrated in figure of the Appendix to this Annex.

2.2.

Test procedure

2.2.1. A cavity shall be formed in the headform by pulling back the ram and the mobile index shall be placed against

the ram.

2.2.2.

The apparatus shall be applied to the projection to be measured so that the headform contacts the maximum
surrounding surface area, with a force not exceeding 2 daN.

2.2.3.

The ram shall be pushed forward until it makes contact with the projection to be measured and the amount of
the projection shall be observed on the scale.

2.2.4.

The headform shall be adjusted to obtain maximum projection. The amount of the projection shall be recorded.

2.2.5.

If two or more controls are situated sufficiently close for the ram or the headform to contact them simulta­
neously, they shall be treated as follows:

2.2.5.1. Multiple controls, all of which can be contained in the headform cavity; shall be regarded as forming a single

projection.

2.2.5.2. If other controls prevent normal testing by contacting the headform, they shall be removed and the test shall be
conducted without them. They may subsequently be re-installed and tested in their turn with other controls that
have been removed to facilitate the procedure.

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Appendix

Figure

Apparatus for measuring projections

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ANNEX VII

Apparatus and procedure for application of paragraph 5.2.1 of this Regulation I

Those parts (switches, pull-knobs etc.) which can be contacted by using the apparatus and procedure described below
shall be considered being likely to be contacted by the knees of an occupant. Foot-operated controls are fitted as foot
pedals.

1. Apparatus

1.1. Diagram of apparatus

2.

Procedure

The apparatus may be placed in any position below the instrument panel so that:

2.1. the plane XX’ remains parallel to the median longitudinal plane of the vehicle;

2.2. the axis X can be rotated above and below the horizontal through angles up to 30°.

3.

In carrying out the above test, all materials of less than 50 shore A hardness shall be removed.

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ANNEX VIII

Determination of a dynamically determined head impact zone

1.

Determination of the dynamically determined head impact zone with regard to the protective system.

1.1. Differing from the procedure described in Annex I the applicant may prove, by a procedure accepted by the
technical service responsible for conducting the tests, that a dynamically determined head impact zone is relevant
for this vehicle type.

1.2. A suitable method to prove a dynamically determined head impact zone may be either:

1.2.1. Vehicle impact tests

to determine the sequence of movement of the occupants with regard to the protective system installed in the
vehicle type, using the frontal impact conditions in the range of ± 30° against a fixed rigid barrier with an impact
speed of at least 48.3 km/h. Normally it will be sufficient to test at 0°, + 30° and – 30°.

The dynamically determined head impact zone has to be evaluated for the occupants represented by adult
dummies of the types 5th percentile female, 50th percentile male and 95th percentile male, each placed in its
recommended seating position before the test as defined by the manufacturer, or

1.2.2. Sled tests

The sequence of movement shall be investigated under the effect of the deceleration-time diagram as shown in
Annex VIII of Regulation No 16 (change of velocity 50 km/h) respecting the above prescribed dummy family and
producing a direction of a forward displacement of the respective dummies corresponding to the movement of the
dummies during real frontal impact tests according to paragraph 1.2.1.

The direction of the forward displacement of the dummies is deemed satisfactory, if the centre line of the test
object, normally a body shell, covers the range of ± 18° from the longitudinal centreline of the sled. Normally it
will be sufficient to test at 0°, + 18° and – 18°, or

1.2.3. Simulated impact testing

2.

3.

The sequence of movements of the occupants, represented by the dummy family described in paragraph 1.2.1.
above shall be investigated as described in paragraphs 1.2.1. or 1.2.2. above. The simulation method shall be
validated by at least three of the impact conditions as prescribed in paragraphs 1.2.1. or 1.2.2. above.

The dynamically determined head impact zone includes all areas of the instrument panel that may be contacted by
the head of restraint occupants using the protective system installed in the vehicle type.

If the vehicle type can be fitted with different protective systems it is sufficient to investigate the protective system
with the minimum performance. However, protective systems that can be deactivated by the driver or the occupant
have to be set as recommended and indicated by the manufacturer in the owners handbook.

If the manufacturer provide for permanent deactivation of a part of the protective system, then this part has to be
set to the deactivated configuration.

4.

The manufacturer or his representative is entitled to present calculations, simulations, test data or test results which
sufficiently prove the dynamically determined head impact zone.

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ANNEX IX

Typical position of cylindrical test rod in the opening roof and window openings

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Examples of symbols for driver controlled switch

Figure 2

Figure 3

(ISO 2575:1998)

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ANNEX X

Explanatory notes

Paragraph 2.3.

The reference zone is outlined without rear view mirror. The energy-dissipation test is accomplished without the rear view
mirror. The pendulum shall not impact the mirror mounting.

Paragraphs 2.3 and 2.3.1.

The exempted area behind the steering wheel as defined by these paragraphs is also valid for the head impact area of the
front passengers.

In the case of adjustable steering wheels the zone finally exempted is reduced to the common area of the exempted zones
for each of the driving positions which the steering wheel may assume.

In the case where it is possible to choose between various steering wheels the exempted zone is determined by the use of
the least favourable steering wheel having the smallest diameter.

Paragraph 2.4.

The level of the instrument panel extends over the entire width of the passenger compartment and is defined by the
rearmost points of contact of a vertical line with the surface of the instrument panel when the line is moved across the
width of the vehicle. Where two or more points of contact occur simultaneously, the lower point of contact shall be used
to establish the level of the instrument panel. In the case of consoles, if it is not possible to determine the level of the
instrument panel by reference to the points of contact of a vertical line the level of the instrument panel shall be where a
horizontal line 25.4 mm above the ‘H’ point of the front seats intersects the console.

Paragraph 2.5.

At the vehicle sides the roof shall commence at the upper edge of the door aperture. In the normal case, the lateral roof
limits will be represented by the contours formed by the bottom edge (lateral view) of the remaining body when the door
has been opened. In the case of windows, the lateral
limitation of the roof will be the continuous transparent line
(penetration point of the lateral windowpanes). At the posts, the lateral roof limitation will pass through the connecting
line between the transparent lines. The definition of paragraph 2.5 is also valid for any opening for the roof, in the closed
position, of a vehicle as defined in paragraphs 2.7 or 2.8. For measuring purposes, downward facing flanges shall be
ignored. These will be considered as forming part of the vehicle sidewall.

Paragraph 2.7.

A non-removable rear window is understood to be a rigid structural element.

Cars with non-removable rear windows of rigid material are considered to be cars with opening roofs as defined under
paragraph 2.8.

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Paragraph 2.18.

In case of a gap between the edge of a rigid material and the panel, this edge shall be rounded to a minimum radius of
curvature depending on the gap shown in the table in the explanatory note to paragraph 5.1.1. This also applies, if the
height of the projection, determined according to the procedure described in paragraph 1 of Annex VI, is equal or less
than 3,2 mm.

If the gap is located in a zone where a head impact test has to be carried out, the edges which can be contacted during
the test(s) resulting from displacement of parts shall be protected by a minimum radius of 2,5 mm.

Paragraph 5.1.1.

A sharp edge is an edge of a rigid material having a radius of curvature of less than 2,5 mm except in the case of
projections of less than 3,2 mm, measured from the panel. In this case, the minimum radius of curvature shall not apply
provided the height of the projection is not more than half its width and its edges are blunted.

Grills are considered to comply with the regulations if they meet the minimum requirements of the following table:

Gap between elements [mm]

Flat elements

e/min. [mm]

min. radius [mm]

Rounded elements
min. radius [mm]

0-10

10-15

15-20

1,5

2,0

3,0

0,25

0,33

0,50

0,5

0,75

1,25

Paragraph 5.1.2.

During the test, it is determined whether parts within the impact zone used for reinforcement may be displaced or
protrude so as to increase the hazards to passengers or the severity of injuries.

Paragraph 5.1.3.

These two concepts (level and lower edge of the instrument panel) may be distinct. However, this point is included in
paragraph 5.1 ( … above the level of the instrument panel …) and, therefore is applicable only where these two concepts
are combined. In the case where the two concepts are not combined, i.e. where the bottom edge of the instrument panel
is located below the level of the instrument panel, it will be considered under paragraph 5.3.2.1 by reference to para-
graph 5.8.

Paragraph 5.1.4.

If a pull handle or knob has a width dimension equal to or more than 50 mm and is located in a zone such that if it
were less than 50 mm in width the maximum projection would be determined using the headform measuring apparatus
of Annex VI, paragraph 2. The maximum projection shall be determined in accordance with Annex VI, paragraph 1, i.e.
by using a 165 mm diameter sphere and determining the maximum variation in height of the ‘y’ axis. The cross-sectional
area shall be measured in a plane parallel to the surface on which the component is mounted.

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Paragraph 5.1.5.

Paragraphs 5.1.4 and 5.1.5 complement each other; the first sentence of paragraph 5.1.5 (i.e. a force of 37,8 daN for
retraction or detachment) is applied and then paragraph 5.1.4 in case of retraction up to a protrusion between 3,2 and
9,5 mm or, in the case of detachment, the two last sentences of paragraph 5.1.5 (the cross-section area is measured
before the force is applied). However, if, under practical circumstances paragraph 5.1.4 must be applied (retraction to
under 9,5 mm and over 3,2 mm) it could be more convenient, at the manufacturer's discretion, to verify the specifi­
cations of paragraph 5.1.4 before applying the force of 37,8 daN specified in paragraph 5.1.5.

Paragraph 5.1.6.

Since, in the presence of soft materials, the requirements apply only to the rigid support, the projection is measured for
the rigid support only.

The shore hardness measurement is made on samples of the test subject itself. Where, due to the condition of the
material, it is impossible to carry out a hardness measurement by the shore A procedure, comparable measurements shall
be used for evaluation.

Paragraph 5.2.1.

Foot pedals, their arms and immediate pivotal mechanism, but not the surrounding support metal, shall be excluded from
consideration.

The ignition key is deemed to satisfy the requirements of this paragraph if the protruding part of its shank consists of a
material of between 60 and 80 shore A hardness and a thickness of at least 5 mm, or is covered with such a material of
2 mm minimum thickness on all surfaces.

Paragraph 5.2.2.

The criterion to determine whether the parking brake control can be contacted is the use of:

the simulated head specified in Annex I, if the control is located above or on the level of the instrument panel (to be
tested in accordance with paragraph 5.1 and within the impact zone);

the knee specified in Annex VII if the control element is located below the level of the instrument panel (in this case the
control lever is tested in accordance with paragraph 5.3.2.3).

Paragraph 5.2.3.

The technical specifications listed in paragraph 5.2.3 apply also to shelves and those parts of consoles below the level of
the instrument panel located between the front seats, provided that these are located in front of the ‘H’ point. If a cavity is
closed it will be treated as a glove compartment and not be subject to these specifications.

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Paragraph 5.2.3.1.

The dimensions specified refer to the surface before the addition of material of less than 50 shore A hardness (see
paragraph 5.2.4). Energy-dissipating tests shall be conducted in the spirit of Annex IV.

Paragraph 5.2.3.2.

If a shelf becomes detached or breaks up, no dangerous features must result; this applies not only to the rim but also to
other edges facing into the passenger compartment as a result of the applied force.

The strongest part of the shelf shall be considered to be adjacent to a fixture. Also, ‘substantially distorted’ shall mean
that, under the effect of the applied force, the deflection of the shelf, measured from the initial point of contact with the
test cylinder, must be a fold or a deformation visible to the naked eye. Elastic deformation shall be admissible.

The length of the test cylinder shall be at least 50 mm.

Paragraph 5.3.
‘Other parts’ shall include such parts as window catches, seat belt upper anchorages and other parts located in the foot
space and at the door side, unless these parts have been treated previously or are exempted in the text.

Paragraph 5.3.2.

The space between the forward bulkhead and the instrument panel which is located higher than the bottom edge of the
instrument panel is not subject to the specifications of paragraph 5.3.

Paragraph 5.3.2.1.

The 3,2 mm radius applies to all contactable components covered by paragraph 5.3 when considered in all positions of
use.

As exceptions, glove compartments shall be considered only in the closed position; seat belts will normally be considered
only in the fastened position, but any part which has a fixed stowage position shall also comply with the 3,2 mm radius
requirement in that stowed position.

Paragraph 5.3.2.2.

The reference surface is found by application of the device described in Annex VI, paragraph 2, with a force of 2 daN.
Where this is not possible, the method described in Annex VI, paragraph 1, shall be used with a force of 2 daN.

The evaluation of dangerous projections is subject to the discretion of the authority responsible for the tests.

The force of 37,8 daN is applied even if the original projection is less than 35 or 25 mm, as applicable. The projection is
measured under the applied load.

The horizontal, longitudinal force of 37,8 daN is normally applied by means of a flat-ended ram of not more than 50
mm diameter but, where this is not possible, an equivalent method may be used; for instance, by removing obstacles.

With new modern door designs, window winders handle is sometimes surrounded by the form of the door panel. It is
often difficult or impossible for an occupant to touch the handle with his knees. It is up to the Technical Services to
decide in this case with the agreement of the manufacturer whether or not to carry out the push test as described or not.

Paragraph 5.3.2.3.

The furthest projecting part, in the case of a gear lever, is that part of the grip or knob first contacted by a vertical
transverse plane moved in a longitudinal, horizontal direction. If any part of a gear lever or handbrake lies above the ‘H’
point level, that lever will have to be considered as if the whole of it were above the ‘H’ point level.

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Paragraph 5.3.4.
Where the horizontal plane(s) passing through the ‘H’ point of the lowest front and rear seats do not coincide, then a
vertical plane perpendicular to the vehicle's longitudinal axis shall be determined, passing through the front seat ‘H’ point.
The exempted zone will then be considered separately for both the front and rear passenger compartments, relative to
their respective ‘H’ point and up to the vertical plane defined above.

Paragraph 5.3.4.1.

Movable sun visors shall be considered in all positions of use. The frames of sun visors shall not be regarded as rigid
supports (see para. 5.3.5).

Paragraph 5.4.

When the roof is tested to measure those protrusions and parts which can be contacted by a ball having a diameter of
165 mm, the roof lining must be removed. When evaluating the specified radii the proportions and properties attribu­
table to the materials of the roof lining shall be taken into consideration. The roof testing area shall extend in front of
and above the transverse plane limited by the torso reference line of the manikin placed on the rearmost seat.

Paragraph 5.4.2.1.
(See para. 5.1.1 for definition of ‘sharp edges’).

The downward projection shall be measured normal to the roof in accordance with Annex VI, paragraph 1.

The width of the projecting part shall be measured at right angles to the line of the projection. In particular the rigid roof
sticks or ribs shall not project away from the inner surface of the roof more than 19 mm.

Paragraph 5.5.

Any roof ribs on opening roofs must meet paragraph 5.4 if they are contactable by a 165 mm diameter sphere;

Paragraphs 5.5.1.2, 5.5.1.2.1, 5.5.1.2.2.

The opening and operating devices when in a position of rest and with the roof closed must meet all of the specified
conditions.

Paragraph 5.5.1.2.3.

The force of 37,8 daN is applied even if the original projection is 25 mm or less. The projection is measured under the
applied load.

The force of 37,8 daN applied in the direction of impact defined in Annex IV as the tangent to the trajectory of the
headform is normally applied by means of a flat-ended ram of not more than 50 mm diameter, but where this is not
possible an equivalent method may be used; for instance, by removing obstacles.

The ‘position of rest’ means the position of the operating device when it is in the locked position.

Paragraph 5.6.

The rod system of convertible tops does not represent a roll-over bar.

Paragraph 5.6.1.

The top part of the windscreen frame starts above the transparent contour of the windscreen.

Paragraph 5.7.1.1.
See paragraph 5.1.1 for definition of ‘sharp edge’.

Paragraph 5.7.1.2.

In defining the head impact zone of the back of the front seats any structure necessary to support the seat back shall be
considered as a component of this seat back.

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Paragraph 5.7.1.2.3.

The padding of the seat frame structure shall also avoid dangerous roughness and sharp edges likely to increase the risk of
serious injuries to the occupants.

ANNEX I

Determination of the head-impact zone

Paragraph 2.1.1.2.

The choice between the two procedures for determining height is to be left to the manufacturer.

Paragraph 2.2.

When determining points of contact, the length of the arm of the measuring apparatus is not changed during a particular
operation. Each operation starts from the vertical position

Paragraph 3.
The 25,4 mm dimension means the measurement from a horizontal plane passing through the ‘H’ point to the horizontal
tangent to the lower profile of the headform.

ANNEX IV

Procedure for testing energy-dissipating materials

Paragraph 1.4.

The breakage of any component during the energy-dissipation test, see Note on paragraph 5.1.2.

ANNEX V
Procedure for determining the ‘H’ point and the actual torso angle for seating positions in motor vehicles

Paragraph 4.
For determining the ‘H’ point of any seat, other seats may be removed if necessary.