United Nations ECE
Regulations and Safety
Standards :
Safety Standards : ECE
R44.03 and ECE R44.04
Child restraints (baby seats, child seats, booster
seats and booster cushions) sold in the UK must conform to the United
Nations ECE Regulation R44.03 or later standard (R44.04).
(Child restraints that conform to a British Standard
or to an earlier version of R44, may continue to be used, although as
these will now be several years old, parents should consider replacing
them with a seat that conforms to R44.03 or R44.04).
The standard, ECE R44.04, was introduced at the end of June 2005, and
all new child car seats had to meet this standard from the end of June
2006.
United Nations ECE Regulation No. 44
"Uniform Provisions Concerning the Approval of
Restraining Devices for Child Occupants of Power-Driven Vehicles ('Child
Restraint Systems')"
To conform to the Regulation, a child restraint must
meet a series of design and construction requirements and pass a series
of performance tests.
Main Design Requirements
The child restraint must provide protection in
any position in which it is designed to be used. It must be designed to
be secured to the vehicle structure or to the seat structure, either by
the adult seat belt or specific anchorages.
Seat Belt Routing
If a restraint is to be used with an adult seat
belt, the correct routing of the seat belt webbing must be clearly
indicated by a drawing permanently attached to the restraint.
If the restraint is held in place by the seat belt,
the route(s) of the webbing must clearly marked and color coded red for
forward-facing seats and blue for rearward facing ones.
Restraints in Groups I, 2 and 3, must positively
guide the "lap strap" to ensure that the loads transmitted by the "lap
strap" are transmitted through the pelvis.
To prevent slipping under the harness, either by
impact or through restlessness, a crotch strap is required on all
forward-facing Group I restraints which incorporate an integral harness.
The Buckle
The buckle must be easy to operate and it must be possible to open it
and release the child from the restraint by a single operation on a
button or similar device. Opening the buckle must enable the child to be
removed independently of the "chair", "chair support" or "impact
shield", if fitted, and if the restraint includes a crotch strap, the
crotch strap must be released by operation of the same buckle.
It must not be possible for the buckle to be left in
a partially closed position and it must only lock when all parts are
engaged. The operation of the buckle must be immediately obvious to a
rescuer in an emergency. The buckle release area must be red, but no
other part of the buckle should be this color.
For Group 2 and 3 child restraints, the child
occupant must be able to reach the buckle.
Child's Position
Restraints in Groups 0, 0+ and I restraint systems must keep the child
positioned to give the required protection even when the child is
asleep. The design of rear-facing restraints must ensure that support
for the child's head is provided.
Performance Tests
Child restraints must pass a series of performance tests:
Impact Tests
Frontal Impact
The child restraint is fitted onto a vehicle or a test trolley in a
vehicle body. Test dummies of various sizes (appropriate to the child
restraint) are fitted into the restraint. This is then accelerated at 50
km/h towards a block of reinforced concrete weighing at least 70 tons.
Rear Impact
A rigid steel impactor at least 2,500 mm wide and
800 mm high is accelerated towards the rear of the 'vehicle' so that it
strikes the 'vehicle' at between 30 and 32 km/h.
During the tests, the test dummy must not be thrown
forward more than a set distance and it must not receive an impact force
above a specified level. No part of the child restraint that helps to
keep the child in position shall break, and no buckles or locking system
shall release. The seat belt must not become disengaged from any guide
or locking device.
Overturning
A test dummy is strapped into the restraint according to the
manufacturer's instructions. The restraint is fastened to a test or
vehicle seat, which is rotated through an angle of 360 degrees at a
speed of 2-5 degrees/second. When the seat is upside down, the dummy's
head must not move more than 300 mm from its original position in a
vertical direction relative to the test seat.
Buckle
The buckle is opened and closed 5,000 times, and must still operate
properly after the impact tests described above.
Markings
The restraint must be clearly and indelibly marked with:
the manufacturer's name, initials or trade
mark
the year of production
the international approval mark - a circle
surrounding the letter "E", an approval number and the symbols:
E/ECE/324
the weight range for which the child
restraint has been designed
an address to which the customer can write
to obtain further information on fitting the child restraint in
specific cars.
Rear facing child restraints must have a permanently
attached label, visible in the installed position, with the warning:
"EXTREME HAZARD - Do not use in passenger seats equipped with airbags".
Child restraints that can be used forward and rear
facing, must have a warning including the words: "IMPORTANT - DO NOT USE
FORWARD FACING BEFORE THE CHILD'S WEIGHT EXCEEDS xx (Refer to
instructions)"
Instructions
The child restraint must be accompanied by
instructions in the language of the country where the device is sold,
including the following:
The weight groups for which the device is
intended.
The method of installation illustrated by
photographs and/or very clear drawings.
A recommendation that rigid items and
plastic parts must be installed so that they are not liable,
during everyday use of the vehicle, to become trapped by a
movable seat or in a vehicle door.
A recommendation to use carry-cots
perpendicular to the longitudinal axis of the vehicle.
For rearward facing systems, a warning not
to use them in seating positions where there is an airbag
installed (this advice must also be clearly visible at the point
of sale without removing the packaging).
If the restraint is designed to be used with
an adult seat belt, advice about which type of seat belt is
suitable.
For seats that can be used both forward and
rear-facing, a clear warning to keep the restraint rear-facing
until the child's weight is greater than a stated limit, or some
other dimensional criterion is exceeded.
A clear explanation of the operation of the
buckle and adjusting devices.
A recommendation that any straps holding the
restraint to the vehicle should be tight, that any straps
restraining the child should be adjusted to the child's body,
and that straps should not be twisted.
The importance of ensuring that lap straps
are worn low down over the pelvis.
A recommendation that the restraint should
be changed if it has been in an accident.
Instructions for cleaning.
A warning not to make any alterations or
additions to the restraint and to follow the manufacturer's
instructions when installing and using it.
A recommendation that children are not left
in their child restraint unattended
|