In parliamentary systems and presidential systems of government, primary legislation and secondary legislation, the latter also called delegated legislation or subordinate legislation, are two forms of law, created respectively by the legislative and executive branches of government. Primary legislation generally consists of statutes, also known as 'acts', that set out broad outlines and principles, but delegate specific authority to an executive branch to make more specific laws under the aegis of the principal act. The executive branch can then issue secondary legislation (often by order-in-council in parliamentary systems, or by regulatory agencies in the American system), creating legally enforceable regulations and the procedures for implementing them.


In Canadian law, primary legislation (also called statute law) consists of acts of the Parliament of Canada and the legislatures of the provinces, and of Orders in Council made under the Royal Prerogative. Secondary legislation (also called regulation) includes laws made by federal or provincial Order in Council by virtue of an empowering statute previously made by the parliament or legislature.

Civil law jurisdictions

Civil law systems are almost universal in Europe, with the exceptions of England, Wales, Northern Ireland and the Republic of Ireland, as well as in Central and South America, much of Africa and Asia. In all cases, a parliament will issue primary legislation, with lesser bodies granted powers to issue delegated legislation. A judicial review may be provided by a constitutional court.

European Union

Each member state of the European Union (EU) has its own laws, and there is also overall EU law. The founding treaty, the 1957 Treaty of Rome, and all subsequent treaties, such as the Maastricht Treaty, Nice Treaty, and Lisbon Treaty, are the main primary legislation. The Treaty of Rome gives powers to make secondary legislation. Member states must surrender some national jurisdiction powers to the European Union; these delegated powers are exercised by the Commission, Council and European Parliament acting in concert, having consulted the European Economic and Social Committee and the European Committee of the Regions. The powers are exercised via binding Regulations, Directives, Decisions, and non-binding Recommendations and Opinions. * A Regulation is a law which is binding in its entirety and directly applicable in all Member States without needing national implementation. EU citizens may have standing to pursue breaches of regulations and treaties, as in Van Gend en Loos v Nederlandse Administratie der Belastingen. * A Directive is an order to Member States to pass legislation. It is "binding as to the result to be achieved", but Member States can choose their own form of implementation. EU citizens may have standing to pursue failures to implement, as in Francovich v Italy. * A Decision is a law that addresses a specific issue. Addressees may challenge a decision via Judicial Review. The Commission may take executive action in pursuance of policy, and may even act quasi-judicially in matters of EU competition law, a power defined in Article 101 and Article 102 of the Treaty on the Functioning of the European Union. Privileged parties, such as Member States, EU Institutions, and those with specific standing, may initiate litigation. For example, the Commission may sue Member States for breaches of EU obligations, and Member States may sue Institutions or other Member States for breach of EU law.

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United Kingdom

Primary legislation

In the United Kingdom, primary legislation can take a number of different forms: * An Act of Parliament. * An Act of the Scottish Parliament, Measure or Act of the Senedd or Act of the Northern Ireland Assembly * An Order in Council made under the Royal Prerogative * Church of England Measures – the instruments by which changes are made to legislation relating to the administration and organisation of the Church.

Secondary legislation

In the United Kingdom, secondary legislation (also referred to as ''delegated legislation'' or ''subordinate legislation'') is law made by an executive authority under powers delegated by an enactment of primary legislation, which grants the executive agency power to implement and administer the requirements of that primary legislation. Forms of secondary legislation in the United Kingdom include only: * Statutory instruments – made in a variety of forms, most commonly Orders in Council, regulations, rules and orders. The form to be adopted is usually set out in the enabling Act.

United States

Primary legislation

In the United States, primary legislation is, at the federal level, an Act of Congress, and the statute that delegates authority is called an ''authorizing statute'' or ''delegation of rule making authority''.

Regulatory law

A law promulgated by the executive branch agency of the US government as the result of primary legislation is called a ''regulatory law'', as ''legislation'' is used to refer only to acts of the legislative branch, never the executive or the judicial branches. The body of law that governs the agency's exercise of rule making and adjudication powers is called "administrative law," primarily the Administrative Procedure Act. In a 2013 majority opinion of the US Supreme Court, Associate Justice Antonin Scalia stated:''City of Arlington v. FCC''
569 U.S. 290, 305 n.4
(2013) (emphasis in original).

See also

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{{OGL-attribution|{{cite web|author=Parliament of the United Kingdom|author-link=Parliament of the United Kingdom|url=http://www.parliament.uk/business/bills-and-legislation/secondary-legislation/|title=Secondary Legislation|access-date=31 October 2015

External links

Public general Acts of the Parliament of the United KingdomSecondary legislation
at the Parliament of the United Kingdom Category:Law by type