Accepted at the International Convention of Brussels on the 25th of August 1924 as the International Convention for the Unification of Certain Rules of Law relating to Bills of Lading and known as the Hague Rules.
The Hague Rules together with the Visby Amendments are called the Hague-Visby Rules (HVR).
The United Nations Convention on the Carriage of Goods by Sea adopted on the 30th of March 1978 and better known as the Hamburg Rules.
The Hague Rules and their Protocols must be considered from three different angels as not every country adopted the Visby Amendment of 1968 and/or the Protocol of 1979.
For the range of application of the relevant Rules, see the "Paramount Clause" on the back of the bill of lading.
In principle, the provisions of the Hague-Visby Rules are only applicable on a negotiable and shipped bill of lading (and which in fact has been negotiated). As the Hague-Visby Rules are of public order they are only mandatory towards a third holder. The provisions of the Hague-Visby Rules belong to the imperative law. Consequently parties may not deviate from them and their main purpose is to protect a third holder who had no knowledge of the agreements made between the original shipper and the receiver of the goods. If the holder of the bill of lading, who is in fact the receiver of the goods, also is the shipper of these goods, the bill of lading has not been negotiated and no third holder was involved so that the Hague-Visby Rules do not apply.
As long as there is no third party involved, parties may, may agree to whatever they want (as long as they don't agree to something immoral or indecent or if what they agree is not against any other law) or even apply the Hague-Visby Rules to their contract of carriage. They may even modify or adapt the text to their personal needs if they wish to do so.
The complete Rules and law texts can be found in full on the Seamanship Library CD or in official Government Journals or in some private publications.
The international legislation which apply to the bill of lading:
1. The Hague Rules.
2. The Hague-Visby Rules (incorporating the 1968 Visby Amendments).
3. The Protocol of 79
4. The Hamburg Rules.
Check which countries ratified each Rule and/or Protocol.
http://tetley.law.mcgill.ca/maritime/ch1.pdf
http://www.jus.uio.no/lm/sea.carriage.hague.visby.rules.1968/doc.html
http://www.admiraltylaw.com/statutes/hague.html
http://ko.bestsme.com/tradeinfo/tinfo1/308.html
http://www.law.duke.edu/curriculum/courseHomepages/Spring2003/352_01/readings/COGSA.pdf
http://tetley.law.mcgill.ca/maritime/mlaw1exam2002.htm