Decree in the context of "Nueva Planta decrees"

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 legislature, resulting in statutes; by the executive through decrees and regulations; or by judges' decisions, which form precedent in common law jurisdictions. An autocrat may exercise those functions within their realm. The creation of laws themselves may be influenced by a constitution, written or tacit, and the rights encoded therein. The law shapes politics, economics, history and society in various ways and also serves as a mediator of relations between people.

Legal systems vary between jurisdictions, with their differences analysed in comparative law. In civil law jurisdictions, a legislature or other central body codifies and consolidates the law. In common law systems, judges may make binding case law through precedent, although on occasion this may be overturned by a higher court or the legislature. Religious law is in use in some religious communities and states, and has historically influenced secular law.

A tomos (Greek: τόμος, romanized: tomos, lit. 'section', 'part of', 'part which is cut') in the Eastern Orthodox Church is a decree of the head of a particular Eastern Orthodox church on certain matters (such as the level of dependence of an autonomous church from its mother church).

Tomos is a Greek word; it can be literally translated as 'a section'. "In the narrower meaning in Orthodox church terminology, a tomos is [...] a scroll or a small book, but one with a very specific purpose — it codifies a decision by a Holy Synod, or council of Orthodox bishops." The translation of the word tomos in English is document.

Rule by decree is a style of governance allowing quick, unchallenged promulgation of law by a single person or group of people, usually without legislative approval. Rule by decree is often a key feature of dictatorships. Governments often issue decrees in order to bypass the conventional means of making laws.

The Boletín Oficial del Estado (BOE; "Official State Gazette", from 1661 to 1936 known as the Gaceta de Madrid, "Madrid Gazette") is the official gazette of Spain and may be published on any day of the week. The content of the BOE is authorized and published by Royal Assent and with approval from the Spanish Presidency Office.

The BOE publishes decrees by the Cortes Generales, Spain's Parliament (comprising the Senate and the Congress of Deputies) as well as those orders enacted by the Spanish Autonomous Communities. The Spanish Constitution of 1978 provides in Article 9.3 that "The Constitution guarantees ... the publication of laws." This includes the official publishing of all Spanish judicial, royal and national governmental decrees, as well as any orders by the Council of Ministers.

Hatt-i humayun (Ottoman Turkish: خط همايون ḫaṭṭ-ı hümayun, plural خط همايونلر, ḫaṭṭ-ı hümayunlar), also known as hatt-i sharif (خط شریف ḫaṭṭ-ı şerîf, plural خط شریفلر, ḫaṭṭ-ı şerîfler), was the diplomatics term for a document or handwritten note of an official nature composed and personally signed by an Ottoman sultan. These notes were commonly written by the sultan personally, although they could also be transcribed by a palace scribe. They were written usually in response to, and directly on, a document submitted to the sultan by the grand vizier or another officer of the Ottoman government. Thus, they could be approvals or denials of a letter of petition, acknowledgements of a report, grants of permission for a request, an annotation to a decree, or other government documents. Hatt-i humayuns could also be composed from scratch, rather than as a response to an existing document.

After the Tanzimat era (1839–1876), aimed at modernizing the Ottoman Empire, hatt-i humayuns of the routine kind, as well as fermans, were supplanted by the practice of irade-i seniyye, or irade (Ottoman Turkish: اراده سنیه irâde-i seniyye; French: iradé or less standardly iradèh, meaning 'ordinance'), in which the sultan's spoken response to his Grand Vizier's recommendations was recorded on the document by his scribe.