Marking of packages
NOTE: For marks related to the construction, testing and approval of packagings, large packagings,
gas receptacles and IBCs, see Part 6.
Unless provided otherwise in ADR, the UN number corresponding to the dangerous goods contained,
preceded by the letters "UN" shall be clearly and durably marked on each package. The UN number
and the letters "UN" shall be at least 12 mm high, except for packages of 30 litres capacity or less or
of 30 kg maximum net mass and for cylinders of 60 litres water capacity or less, when they shall be at
least 6 mm in height and except for packages of 5 litres or 5 kg or less when they shall be of an
appropriate size. In the case of unpackaged articles the mark shall be displayed on the article, on its
cradle or on its handling, storage or launching device.
All package marks required by this Chapter:
(a) shall be readily visible and legible;
(b) shall be able to withstand open weather exposure without a substantial reduction in
Salvage packagings and salvage pressure receptacles shall additionally be marked with the word
"SALVAGE". The lettering of the "SALVAGE" mark shall be at least 12 mm high.
Intermediate bulk containers of more than 450 litres capacity and large packagings shall be marked on
two opposite sides.
Additional provisions for goods of Class 1
For goods of Class 1, packages shall, in addition, bear the proper shipping name as determined in
accordance with 3.1.2. The mark, which shall be clearly legible and indelible, shall be in an official
language of the country of origin and also, if that language is not English, French or German, in
English, French or German unless any agreements concluded between the countries concerned in the
transport operation provide otherwise.
Additional provisions for goods of Class 2
Refillable receptacles shall bear the following particulars in clearly legible and durable characters:
(a) the UN number and the proper shipping name of the gas or mixture of gases, as determined in
accordance with 3.1.2.
In the case of gases classified under an N.O.S. entry, only the technical name1 of the gas has to
be indicated in addition to the UN number.
In the case of mixtures, not more than the two constituents which most predominantly
contribute to the hazards have to be indicated;
(b) for compressed gases filled by mass and for liquefied gases, either the maximum filling mass
and the tare of the receptacle with fittings and accessories as fitted at the time of filling, or the
1 Instead of the technical name the use of one of the following names is permitted:
- for UN No. 1078 refrigerant gas, n.o.s: mixture F1, mixture F2, mixture F3;
- for UN No. 1060 methylacetylene and propadiene mixtures, stabilized: mixture P1, mixture P2;
- for UN No. 1965 hydrocarbon gas mixture, liquefied, n.o.s.: mixture A or butane, mixture A01 or butane,
mixture A02 or butane, mixture A0 or butane, mixture A1, mixture B1, mixture B2, mixture B, mixture C
- for UN No. 1010 Butadienes, stabilized: 1,2-Butadiene, stabilized, 1,3-Butadiene, stabilized.
(c) the date (year) of the next periodic inspection.
These particulars can either be engraved or indicated on a durable information disk or label attached
on the receptacle or indicated by an adherent and clearly visible mark such as by printing or by any
NOTE 1: See also 22.214.171.124.
NOTE 2: For non refillable receptacles, see 126.96.36.199.
Special marking provisions for radioactive material
Each package shall be legibly and durably marked on the outside of the packaging with an
identification of either the consignor or consignee, or both. Each overpack shall be legibly and
durably marked on the outside of the overpack with an identification of either the consignor or
consignee, or both unless these marks of all packages within the overpack are clearly visible.
For each package, other than excepted packages, the UN number preceded by the letters "UN" and the
proper shipping name shall be legibly and durably marked on the outside of the packaging. The
marking of excepted packages shall be as required by 188.8.131.52.1.
Each package of gross mass exceeding 50 kg shall have its permissible gross mass legibly and durably
marked on the outside of the packaging.
Each package which conforms to:
(a) a Type IP-1 package, a Type IP-2 package or a Type IP-3 package design shall be legibly and
durably marked on the outside of the packaging with "TYPE IP-1", "TYPE IP-2" or "TYPE IP-
3" as appropriate;
(b) a Type A package design shall be legibly and durably marked on the outside of the packaging
with "TYPE A";
(c) a Type IP-2 package, a Type IP-3 package or a Type A package design shall be legibly and
durably marked on the outside of the packaging with the distinguishing sign used on vehicles
in international road traffic2 of the country of origin of design and either the name of the
manufacturer or other identification of the packaging specified by the competent authority of
the country of origin of design.
Each package which conforms to a design approved under one or more of paragraphs 184.108.40.206.1,
220.127.116.11.1, 18.104.22.168 to 22.214.171.124 and 126.96.36.199 to 188.8.131.52 shall be legibly and durably marked on the
outside of the package with the following information:
(a) the identification mark allocated to that design by the competent authority;
(b) a serial number to uniquely identify each packaging which conforms to that design;
(c) "Type B(U)", "Type B(M)" or "Type C", in the case of a Type B(U), Type B(M) or Type C
Each package which conforms to a Type B(U), Type B(M) or Type C package design shall have the
outside of the outermost receptacle which is resistant to the effects of fire and water plainly marked by
embossing, stamping or other means resistant to the effects of fire and water with the trefoil symbol
shown in the figure below.
2 Distinguishing sign of the State of registration used on motor vehicles and trailers in international road traffic,
e.g. in accordance with the Geneva Convention on Road Traffic of 1949 or the Vienna Convention on Road Traffic of
Basic trefoil symbol with proportions based on a central circle of radius X.
The minimum allowable size of X shall be 4 mm.
Where LSA-I or SCO-I material is contained in receptacles or wrapping materials and is carried under
exclusive use as permitted by 184.108.40.206.4, the outer surface of these receptacles or wrapping materials
may bear the mark "RADIOACTIVE LSA-I" or "RADIOACTIVE SCO-I", as appropriate.