Tunnel restriction codes

The restrictions for the transport of specific dangerous goods through tunnels are based on the tunnel
restriction code of these goods, indicated in Column (15) of Table A of Chapter 3.2. The tunnel
restriction codes are put between brackets at the bottom of the cell. When ‘(─)’ is indicated instead of
one of the tunnel restriction codes, the dangerous goods are not subject to any tunnel restriction; for
the dangerous goods assigned to UN Nos. 2919 and 3331, restrictions to the passage through tunnels
may, however, be part of the special arrangement approved by the competent authority(ies) on the
basis of 1.7.4.2.

When a transport unit contains dangerous goods to which different tunnel restriction codes have been
assigned, the most restrictive of these tunnel restriction codes shall be assigned to the whole load.

Dangerous goods carried in accordance with 1.1.3 are not subject to the tunnel restrictions and shall
not be taken into account when determining the tunnel restriction code to be assigned to the whole
load of a transport unit, except if the transport unit is required to be marked in accordance with 3.4.13
subject to 3.4.14.

Restrictions for the passage of transport units carrying dangerous goods through tunnels

The restrictions for passage through tunnels shall apply:
- to transport units for which marking is required by 3.4.13 subject to 3.4.14, through tunnels of
category E; and
- to transport units for which an orange-coloured plate marking is required according to 5.3.2, in
accordance with the table below once the tunnel restriction code to be assigned to the whole
load of the transport unit has been determined.
 

Tunnel restriction code of the whole load

Restriction

B

Passage forbidden through tunnels of category B, C, D and E

B1000C

Carriage where the total net explosive mass per transport unit

  • exceeds 1000 kg: Passage forbidden through tunnels of category B, C, D and E;

  • does not exceed 1000 kg: Passage forbidden through tunnels of category C, D and E

B/D

Tank carriage: Passage forbidden through tunnels of category B, C, D

and E;

Other carriage: Passage forbidden through tunnels of category D and E

B/E

Tank carriage: Passage forbidden through tunnels of category B, C, D

and E;

Other carriage: Passage forbidden through tunnels of category E

C

Passage forbidden through tunnels of category C, D and E

C5000D

Carriage where the total net explosive mass per transport unit

  • exceeds 5000 kg: Passage forbidden through tunnels of category C, D and E;

  • does not exceed 5000 kg: Passage forbidden through tunnels of category D and E

C/D

Tank carriage: Passage forbidden through tunnels of category C, D

and E;

Other carriage: Passage forbidden through tunnels of category D and E

C/E

Tank carriage: Passage forbidden through tunnels of category C, D and E;

Other carriage: Passage forbidden through tunnels of category E

D

Passage forbidden through tunnels of category D and E

D/E

Bulk or tank carriage: Passage forbidden through tunnels of category

D and E;

Other carriage: Passage forbidden through tunnels of category E

E

Passage forbidden through tunnels of category E

-

Passage allowed through all tunnels (For UN Nos. 2919 and 3331, see

also 8.6.3.1).

 
NOTE 1: For example, the passage of a transport unit carrying UN 0161, powder, smokeless,
classification code 1.3C, tunnel restriction code C5000D, in a quantity representing a total net
explosive mass of 3000 kg is forbidden in tunnels of categories D and E.
 
NOTE 2: Dangerous goods packed in limited quantities carried in containers or transport units
marked in accordance with the IMDG Code are not subject to the restrictions for passage through
tunnels of category E when the total gross mass of the packages containing dangerous goods packed
in limited quantities does not exceed 8 tonnes per transport unit.

9

Requirements concerning the construction and approval of vehicles

9.1

SCOPE, DEFINITIONS AND REQUIREMENTS FOR THE APPROVAL OF VEHICLES

Scope and definitions

Scope

The requirements of Part 9 shall apply to vehicles of categories N and O, as defined in the
Consolidated Resolution on the Construction of Vehicles (R.E.3)1, intended for the carriage of
dangerous goods.
These requirements refer to vehicles, as regards their construction, type approval, ADR approval and
annual technical inspection.

Definitions

For the purposes of Part 9:
"Vehicle" means any vehicle, whether complete, incomplete or completed, intended for the carriage of
dangerous goods by road;
"EX/II vehicle" or "EX/III vehicle" means a vehicle intended for the carriage of explosive substances
and articles (Class 1);
"FL vehicle" means:
(a) A vehicle intended for the carriage of liquids having a flash-point of not more than 60°C
(with the exception of diesel fuel complying with standard EN 590:2013 + AC:2014, gas oil,
and heating oil (light) - UN No. 1202 - with a flash-point as specified in standard EN
590:2013 + AC:2014) in fixed tanks or demountable tanks with a capacity exceeding 1 m3 or
in tank-containers or portable tanks with an individual capacity exceeding 3 m3; or
(b) A vehicle intended for the carriage of flammable gases in fixed tanks or demountable tanks
with a capacity exceeding 1 m3 or in tank-containers, portable tanks or MEGCs with an
individual capacity exceeding 3 m3; or
(c) A battery-vehicle with a total capacity exceeding 1 m3 intended for the carriage of flammable
gases; or
(d) “ox vehicle”,A vehicle intended for the carriage of hydrogen peroxide, stabilized or hydrogen peroxide,
aqueous solution stabilized with more than 60% hydrogen peroxide (Class 5.1, UN No.
2015) in fixed tanks or demountable tanks with a capacity exceeding 1 m3 or in tankcontainers
or portable tanks with an individual capacity exceeding 3 m3;
"AT vehicle" means:
(a) A vehicle, other than EX/III or FL vehicle or than a MEMU, intended for the carriage of
dangerous goods in fixed tanks or demountable tanks with a capacity exceeding 1 m3 or in
tankcontainers,
portable tanks or MEGCs with an individual capacity exceeding 3 m3; or
(b) A battery-vehicle with a total capacity exceeding 1 m3 other than a FL vehicle;
"MEMU" means a vehicle meeting the definition of mobile explosives manufacturing unit in 1.2.1.
"Complete vehicle" means any vehicle which does not need any further completion (e.g. one stage
built vans, lorries, tractors, trailers);
"Incomplete vehicle" means any vehicle which still needs completion in at least one further stage (e.g.
chassis-cab, trailer chassis);
"Completed vehicle" means any vehicle which is the result of a multi-stage process (e.g. chassis or
chassis-cab fitted with a bodywork);
"Type-approved vehicle" means any vehicle which has been approved in accordance with ECE
Regulation No. 1052;
"ADR approval" means certification by a competent authority of a Contracting Party that a single
vehicle intended for the carriage of dangerous goods satisfies the relevant technical requirements of
this Part as an EX/II, EX/III, FL or AT vehicle or as a MEMU.
 
1 United Nations document ECE/TRANS/WP.29/78/Rev.3

Approval of EX/II, EX/III, FL and AT vehicles and MEMUs

NOTE: No special certificates of approval shall be required for vehicles other than EX/II, EX/III, FL,
and AT vehicles and MEMUs, apart from those required by the general safety regulations normally
applicable to vehicles in the country of origin.

General

EX/II, EX/III, FL and AT vehicles and MEMUs shall comply with the relevant requirements of this
Part.
Every complete or completed vehicle shall be subjected to a first inspection by the competent
authority in accordance with the administrative requirements of this Chapter to verify conformity with
the relevant technical requirements of Chapters 9.2 to 9.8.
The competent authority may waive the first inspection for a tractor for a semi-trailer type-approved
in accordance with 9.1.2.2 for which the manufacturer, his duly accredited representative or a body
recognised by the competent authority has issued a declaration of conformity with the requirements of
Chapter 9.2.
The conformity of the vehicle shall be certified by the issue of a certificate of approval in accordance
with 9.1.3.
When vehicles are required to be fitted with an endurance braking system, the manufacturer of the
vehicle or his duly accredited representative shall issue a declaration of conformity with the relevant
prescriptions of Annex 5 of ECE Regulation No. 133. This declaration shall be presented at the first
technical inspection.

Requirements for type-approved vehicles

At the request of the vehicle manufacturer or his duly accredited representative, vehicles subject to
ADR approval according to 9.1.2.1 may be type-approved by a competent authority. The relevant
technical requirements of Chapter 9.2 shall be considered to be fulfilled if a type approval certificate
has been issued by a competent authority in accordance with ECE Regulation No. 1052 provided that
the technical requirements of the said Regulation correspond to those of Chapter 9.2 of this Part and
provided that no modification of the vehicle alters its validity. In the case of MEMUs, the type
approval mark affixed in accordance with ECE Regulation No. 105 may identify the vehicle as either
MEMU or EX/III. MEMUs need only be identified as such on the certificate of approval issued in
accordance with 9.1.3.
This type approval, granted by one Contracting Party, shall be accepted by the other Contracting
Parties as ensuring the conformity of the vehicle when the single vehicle is submitted for inspection
for ADR approval.
At the inspection for ADR approval, only those parts of the type-approved incomplete vehicle which
have been added or modified in the process of completion shall be inspected for compliance with the
applicable requirements of Chapter 9.2.
 
2 ECE Regulation No. 105 (Uniform provisions concerning the approval of vehicles intended for the carriage of
dangerous goods with regard to their specific constructional features).
3 ECE Regulation No. 13 (Uniform provisions concerning the approval of vehicles of categories M, N and O
with regards to braking).

Annual technical inspection

EX/II, EX/III, FL and AT vehicles and MEMUs shall be subject to an annual technical inspection in
their country of registration to make sure that they conform to the relevant requirements of this Part,
and to the general safety regulations (concerning brakes, lighting, etc.) in force in their country of
registration.
The conformity of the vehicle shall be certified either by the extension of validity of the certificate of
approval or by the issue of a new certificate of approval in accordance with 9.1.3.

Certificate of approval

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