BACKGROUND HISTORY
     
In 1815, the Final Act of the Congress of Vienna established the principle of freedom of navigation on international waterways. Among the provisions which followed, the ones concerning the river Rhine held the creation of a Central Commission "in order to ensure a precise control of the enforcement of common rules as well as to provide an authority used as a means of communication between riparian States with regard to all aspects of navigation" (annex to the Final Act of the Congress of Vienna).
The first meeting was held on the 15th of August 1816 in Mainz. On 31st of March 1831, the Convention of Mainz was signed, providing a set of statutory provisions concerning navigation on the Rhine.
Acte de Mannheim  
On 17th of October 1868 the Convention of Mannheim brings about an update of the main regulations, taking into account the evolution of the Rhine navigation in the fields of technique, economy and politics. On 17th of October 1963, the Convention is again amended in Strasbourg and integrated into the Revised Convention for Rhine Navigation.
 
Among later amendments, the most important is the additional Protocol n° 2, which adapts the principle of free navigation by setting up conditions for the transport of goods and passengers on the Rhine giving a content to the criteria of membership to the Rhine navigation.
The CCNR, international organisation (the oldest of governmental organisations)
 
1815
Congress of Vienna initiates a diplomatic conference of the Rhine riparian states.
1816
15th August; first session of the Rhine Commission at Mainz (Germany).
1831
First Convention for Navigation on the Rhine (Convention of Mainz) contains uniform principles for navigation on the Rhine (and numerous police regulations).
1838
First regulation concerning the transport of certain dangerous goods.
1850
First police regulations adopted for navigation on the Rhine.
1861
Transfer of the Commission to Mannheim (Germany).
1868
17th October; signing of the Mannheim Convention establishes the principles for navigation on the Rhine which are still in force today.
1900
Rules for the transport of corrosive and toxic substances.
1904
Adoption of the first safety requirements for barges on the Rhine.
1905
Regulations for the transport of petroleum and its distillation products.
1919
Treaty of Versailles sets new rules for the Commission.
1920
Transfer of the Commission to Strasbourg (France), establishment of a permanent secretariat of the Commission.
1922
First regulation for the issue of a boatmaster's licence (Rhine Patent).
1945
Reconvocation of the Commission after the Second World War.
1963
Signing of a Convention amending the Convention of Mannheim without modification of the basic principles.
1968
First radar rules for inland navigation.
1971
First prescription for the transport of dangerous goods on the Rhine (ADNR).
1979
Additional protocol n° 2 to the Convention of Mannheim, defining the vessels belonging to Rhine- navigation.
1989
Additional protocol n° 4 to the Convention of Mannheim to settle scrapping schemes.
1995
Coming into force of the new revised Police Regulation, Inspection Regulation and ADNR, adapted to the technical progress in inland navigation.
1996
Signing of a Convention regulating waste disposal in inland navigation.
1998
Coming into force of the new revised Regulation for the issuance of boatmaster's licence (patent).
1999
28th April, Signing of an additional protocol n° 5 to the Convention of Mannheim concerning the "scrap-and-built rule".