**2. Supply chain management in logistics**

Depending on actors involved in Supply Chain (SC) (suppliers, transporters, customers), SC definitions can differ regarding the described interactions and dependences between actors. A definition is given by [1]: *"A network of organizations that are involved, through upstream to downstream links, in the different processes and activities that produce value in the form of products and services in the hands of the ultimate customer".*

The UN proposes recommendations for the dangerous goods since 1957 and updates periodically its texts. It is a reference which provides the main recommendations related to the dangerous goods notably about the different methods of transport: air, road, railway, canals and sea. A specialized authority is dedicated for each means of transportation, they are the

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• European Agreement concerning the international carriage of Dangerous goods by Road,

• Regulation concerning the International transport by railway of Dangerous goods, RID, is

• European Agreement concerning the International Carriage of Dangerous Goods by Inland

• International Maritime Dangerous Goods Code, IMDG Code, is for international

Due to the existence of international regulations, countries or groups of countries (the European Union for example) have adapted their laws to harmonize them with the UN model. Thus, country legislations tend to follow the international regulations to make the

Considering the important number of substances, there is a clear need for dangerous goods classification. Existing classifications of dangerous goods are based on chemical families (acid, alcohol, amide, etc.), chemical reactions (oxidation, reduction, combustion) or also on

The CLP (Classification, Labelling, Packaging) regulation is relative to the chemical substances imported or commercialized in the European Union. This regulation entered into force in

CLP provides a global obligation for all suppliers in the supply chain to cooperate. This cooperation is necessary to make the different suppliers meet the requirements for

A new terminology is used, terms of existing regulation are kept whereas news are adopted. The term substance is used to designed hazardous material and the transformation of these

As well, the properties of substances are described according to three properties: physicocochemical, toxicological and ecotoxicological. According to these three criterion, the definition of hazard classes helps to classify a substance. Then, a hazard class defines the

nature of a hazard, it can be physical, on health or on the environment.

• International Air Transport Association, IATA, is for transport by airplane;

Waterways, ADN, manages the international transport on internal canals;

management of dangerous goods more standard and more visible by a third.

ADR, manages the European transport of dangerous goods by road;

for the international transport of dangerous goods by railway;

followings:

transportation by water.

chemical compositions.

*3.1.1. Obligations under CLP*

*3.1.2. Terminology*

classification, labelling and packaging.

substances into a new one is called mixture.

**3.1. Dangerous goods identification**

January 2009 and will be totally applied in 2015.

With this definition, it appears that each company owns an internal SC and participates to another SC. A SC is a succession of activities related to a specific function performed by one or several actors in order to satisfy customer demands. Then, each actor belongs to a global flow, he evolves according to three interactions: his internal tasks, his provider status and his customer status.
