Effective Date

/ɪˈfɛktɪv deɪt/

Definitions

  1. (n.) The date on which a legal document, contract, law, or agreement becomes operative and enforceable.
    The contract’s rights and obligations commence on the effective date.
  2. (n.) In legislation, the date when a statute or regulation comes into force, which may differ from the date of enactment.
    Although the law was passed last year, its effective date is next January.

Commentary

The effective date is critical to determine when legal responsibilities begin; it may be explicitly stated or inferred and is distinct from dates such as signing or enactment.

This glossary is for general informational and educational purposes only. Definitions are jurisdiction-agnostic but reflect terminology and concepts primarily drawn from English and American legal traditions. Nothing herein constitutes legal advice or creates a lawyer-client relationship. Users should consult qualified counsel for advice on specific matters or jurisdictions.

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