The travaux préparatoires (French

French language

French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

: "preparatory works", in the plural

Plural

In linguistics, plurality or [a] plural is a concept of quantity representing a value of more-than-one. Typically applied to nouns, a plural word or marker is used to distinguish a value other than the default quantity of a noun, which is typically one...

) are the official record of a negotiation

Negotiation

Negotiation is a dialogue between two or more people or parties, intended to reach an understanding, resolve point of difference, or gain advantage in outcome of dialogue, to produce an agreement upon courses of action, to bargain for individual or collective advantage, to craft outcomes to satisfy...

. Sometimes published, the "travaux" are often useful in clarifying the intentions

Original intent

Original intent is a theory in law concerning constitutional and statutory interpretation. It is frequently—and usually spuriously—used as a synonym for originalism generally; while original intent is indeed one theory in the originalist family, it has some extremely salient differences which has...

 of a treaty

Treaty

A treaty is an express agreement under international law entered into by actors in international law, namely sovereign states and international organizations. A treaty may also be known as an agreement, protocol, covenant, convention or exchange of letters, among other terms...

 or other instrument. This is reflected in Article 32 of the Vienna Convention on the Law of Treaties

Vienna Convention on the Law of Treaties

The Vienna Convention on the Law of Treaties is a treaty concerning the international law on treaties between states. It was adopted on 22 May 1969 and opened for signature on 23 May 1969. The Convention entered into force on 27 January 1980. The VCLT has been ratified by 111 states as of November...

 (VCLT).

When interpreting treaties, the VCLT places this form of interpretation as secondary or less important than looking to the ordinary meaning (see Articles 31 and 32).

The travaux are often available to the public on the websites created for a specific treaty (such as the Rome Statute) or on the United Nations website.