Constitutions, Charters, and Other Fundamental Laws:

If a constitution, charter, or other fundamental law of a jurisdiction is enacted by a jurisdiction other than the one governed by it, the rule provides for an added entry under the heading for the jurisdiction enacting it, with a uniform title added as appropriate under 25.15. Because this method provides for the needed access point only when the main entry heading is the jurisdiction for which the constitution, etc., was enacted but not when such a constitution, etc., is given as an added or subject entry, the Library of Congress uniformly makes an enacting jurisdiction/uniform title reference in an authority record for the governing jurisdiction/uniform title instead of the added entry called for by the rule.

See also:

21.33. Constitutions, Charters, and Other Fundamental Laws