H418/02 - Delegated legislation and its uses
Parliament cannot write every technical or local rule through a fresh bill. Learn how an Act can authorise others to make delegated legislation, how its three specified forms work, and why speed and expertise must be weighed against accountability and accessibility.
Law made under an Act's authority
Delegation lets Parliament establish a legal framework and authorise another law maker to supply further rules.
Delegated legislation, also called secondary or subordinate legislation, is law made using an authority granted by primary legislation. The parent Act or enabling Act identifies who can exercise the power, what it covers and any required procedures. A minister, council or the monarch in Council therefore cannot assume unlimited authority simply because further rules would be useful.
In an original example, an Act could require safe public pools and authorise a minister to prescribe chemical standards after consulting specialists. Parliament decides the framework and grants the power; the minister's regulations give the authorised detail. If the minister uses that power to regulate unrelated private gardens, usefulness is not enough to show that Parliament authorised the rule. Courts can examine whether delegated law stays within its legal authority.
The practical reasons for delegation include limited parliamentary time, technical expertise, rules needing regular updates, local knowledge and an urgent need to respond. A full new Act for every small change can crowd out major legislation. Officials can seek specialist evidence that Parliament may lack time to examine in detail. A local body can identify risks at a particular site more accurately than a uniform national rule. Emergency powers must still have a legal basis and comply with the conditions governing their use.
These reasons explain delegation; they do not settle how much discretion should be given. Parliament can specify narrow powers and safeguards, or use wider terms that leave more choice. The broader the choice, the more significant the accountability question. Parliament's statutory-instrument glossary explains that powers and procedures come from the parent Act.
Orders in Council
An Order in Council provides a formal route for legislation involving the monarch and Privy Council.
The Privy Council advises the monarch; ministers arrange the policy and legal work behind statutory Orders in Council. In a statutory Order in Council, the monarch makes the order on the Privy Council's advice under the authority of an Act. This is different from Royal Assent to a bill. It is also different from presenting the monarch as personally devising each detailed rule.
A real example is the Misuse of Drugs Act 1971 (Amendment) Order 2022. Section 2 of the 1971 Act authorises changes to controlled-drug classification by Order in Council. The 2022 Order moved GHB, GBL and 1,4-butanediol from Class C to Class B. It was made on 16 March 2022 and took effect on 13 April 2022. Its opening states that the draft had been approved by each House following the required advisory recommendation. The Queen in Council formally made it: the historical wording reflects the monarch at that date. See the Order's primary text.
The example shows why classification detail can be changed without writing a wholly new drug-control Act. Specialist assessment of harm informs the change, while the parent Act prescribes a route involving parliamentary approval. Speed and expertise are advantages, but the effect on criminal penalties means the detail is consequential. Calling a rule “secondary” does not mean it is unimportant.
Orders in Council can serve purposes including transfers of government functions and emergency measures where the relevant legal power permits. This lesson concerns statutory delegated legislation; the name alone should not be used to assume that every Order in Council has a statutory basis. Forms also overlap: the 2022 Order is numbered as a statutory instrument. The categories identify useful characteristics, rather than three sets that can never overlap.
Statutory instruments
Statutory instruments are the common form used to make rules under delegated statutory powers.
A statutory instrument, or SI, is a formal legislative instrument made under statutory authority. Many are made by ministers and called regulations or orders. The parent Act determines the power and parliamentary procedure, which can be affirmative, negative or no parliamentary procedure. SIs do not pass through the full bill stages, but that does not mean none receives parliamentary scrutiny.
The National Minimum Wage Act 1998 creates the framework for an entitlement to a minimum wage and authorises regulations prescribing rates, subject to the Act's other provisions. The National Minimum Wage (Amendment) (No. 2) Regulations 2024, SI 2024/432, were made by the Secretary of State under powers including section 1(3). Following approval of a draft by both Houses, they took effect on 1 April 2024. They increased the national living wage rate to £11.44 and extended it to workers aged 21 and over. These are the changes made in that historical 2024 instrument, not a statement of today's pay rates. The primary instrument identifies the maker, powers and changes.
The distinction explains the advantage of an adjustable framework. Parliament need not pass a new minimum-wage Act every time rates are updated. Regular adjustments can respond to evidence, while the underlying statutory entitlement remains. However, choosing a rate affects workers' incomes and employers' costs. A numerical detail can embody a major policy choice, so “technical” is not a reason to disregard scrutiny.
In an original hypothetical pool-safety system, an SI specifying authorised chemical limits would be a ministerial regulation under the parent Act. A department's press release announcing intended limits would not itself be an SI. Look for the actual legal instrument and its power, rather than assuming that every official instruction has legislative force.
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