Pacta sunt servanda

Pacta sunt servanda, Latin for "agreements must be kept", is a brocard and a fundamental principle of law. According to Hans Wehberg, a professor of international law, "few rules for the ordering of Society have such a deep moral and religious influence" as this principle. In its most common sense, the principle refers to private contracts and prescribes that the provisions, i.e. clauses, of a contract are law between the parties to the contract, and therefore implies that neglect of their respective obligations is a violation of the contract. The first known expression of the brocard is in the writings of the canonist Cardinal Hostiensis from the 13th century AD, which were published in the 16th. In both civil law and common law jurisdictions, the principle is related to the general principle of correct behavior in commerce, including the assumption of good faith. While most jurisdictions in the world have some form of good faith within their legal systems, there exists debate as to how good faith should be evaluated and measured. For example, in the United States—a common law jurisdiction—the implied duty of good faith and fair dealing exists in all commercial contracts. Under international law, "every treaty in force is binding upon the parties to it and must be performed by them in good faith." This entitles states party to the Vienna Convention on the Law of Treaties (signed 23 May 1969 and entered into force on 27 January 1980) to require that obligations instituted by treaties be honored and to rely on such obligations being honored. This basis of good faith for treaties implies that a party to a treaty cannot invoke provisions of its municipal (domestic) law as justification for negligence of its obligations pursuant to the treaty in question. The only limits to application of pacta sunt servanda are the peremptory norms of general international law, which are denominated "jus cogens", i.e. compelling law. The legal principle of clausula rebus sic stantibus in customary international law also permits non-satisfaction of obligations pursuant to treaty because of a compelling change of circumstances.

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Related concepts (13)

Pacta sunt servanda

Contract

A contract is an agreement that specifies certain legally enforceable rights and obligations pertaining to two or more mutually agreeing parties. A contract typically involves the transfer of goods, services, money, or a promise to transfer any of those at a future date. In the event of a breach of contract, the injured party may seek judicial remedies such as damages or rescission. A binding agreement between actors in international law is known as a treaty.

Law

Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise definition a matter of longstanding debate. It has been variously described as a science and as the art of justice. State-enforced laws can be made by a group legislature or by a single legislator, resulting in statutes; by the executive through decrees and regulations; or established by judges through precedent, usually in common law jurisdictions.