H418/02 - Controls on delegated legislation

The parent Act and parliamentary procedures

Parliament's first control is deciding what power to confer and how later rules must be considered.

The parent Act must pass through the primary legislative process. Parliament can restrict the subject matter, name the authorised maker and require consultation or parliamentary approval. A carefully limited power makes it easier to identify a later misuse. Wide wording provides flexibility but can leave substantial choices to the executive. Once the Act is passed, ministers remain bound by its limits; approval of the Act is not advance approval of every possible rule.

Under the ordinary negative resolution procedure, a made instrument is laid before Parliament and can operate without a positive approval vote. It remains subject to annulment if the relevant House resolves against it within the statutory period, normally 40 days. The Statutory Instruments Act 1946, section 5, supplies the general framework for instruments subject to annulment by either House. Parliamentary recess rules affect how the period is counted, so it is not always 40 uninterrupted calendar days. The parent Act determines the particular procedure, including cases involving only the Commons.

Under the usual draft affirmative resolution procedure, a draft must receive the required approval before it is made. Often both Houses must approve; some instruments require only Commons approval. For urgent cases an Act may instead authorise a made affirmative instrument, which operates first but must gain approval within the specified deadline to continue. “Affirmative” therefore should not be treated as meaning that every instrument must always be approved before it operates. Parliament's procedure guide distinguishes these routes.

The drug-classification power in section 2(5) of the Misuse of Drugs Act 1971 requires approval of a draft by each House and advisory consultation or recommendation. That is a concrete choice of safeguards for consequential classification changes. In an original comparison, a routine administrative form might use negative procedure, while a significant regulatory restriction might merit affirmative approval. Significance provides an argument about what Parliament should require; the actual Act decides the legal requirement.

Committee scrutiny and its practical strength

Specialist parliamentary scrutiny can identify defects that a short general debate might miss.

The Joint Committee on Statutory Instruments, made up of MPs and peers, examines technical and legal issues. It can draw attention to defective drafting, doubts about statutory power or an unusual use of a power. It does not decide whether the policy itself is desirable and does not invalidate the instrument. Its report informs Parliament's decision. A corresponding Commons committee examines instruments laid only before the Commons.

The Lords Secondary Legislation Scrutiny Committee considers policy significance and matters such as whether explanatory material adequately supports an instrument. The Lords Delegated Powers and Regulatory Reform Committee examines delegated powers proposed in bills, including whether delegation and the proposed scrutiny level are appropriate. These committees perform different functions: checking the proposed grant, checking legal drafting, and drawing attention to policy concerns. Parliament's technical-scrutiny guide distinguishes them.

Commons Delegated Legislation Committees can debate instruments, but the required approval decision belongs to the House; a committee debate is not itself the final approval. Ordinary SIs generally cannot be amended through this process. Parliament usually faces acceptance or rejection, unlike clause-by-clause amendment of a bill. If a defect is identified, the government can withdraw and replace an instrument where the legal route permits, but Parliament cannot simply rewrite it as if it were a bill.

These controls are valuable because they combine public accountability with focused expertise. A technical report might expose an unauthorised fee that MPs otherwise miss, prompting withdrawal or closer debate. Requiring a positive vote under affirmative procedure guarantees an approval opportunity, which ordinary negative procedure lacks.

Their effectiveness is limited by the volume of instruments, available time and government majorities. Reports can identify a flaw without compelling a remedy. Negative instruments can receive little active debate, and rejecting an entire useful scheme because one provision is defective can be an unattractive option. More debates alone may not solve that problem. A proposed power to amend instruments could permit targeted correction but would consume time and complicate delegated law making. Stronger scrutiny should therefore be judged by whether it produces meaningful control, rather than the number of committees alone.

Procedural ultra vires

A power can be exercised on the right topic but through a legally defective process.

Ultra vires means beyond the legal powers granted. Procedural ultra vires concerns failure to follow a required procedure when exercising those powers. A parent Act might require consultation with specified organisations, publication of a notice or approval before a rule is made. Judicial review examines legality: the court asks whether the maker complied with the legal requirement, rather than whether the judge likes the rule.

Consider an original hypothetical Act authorising a minister to set workplace-training levies “after consulting organisations representing the affected employers”. The minister sets a levy but deliberately consults no employer organisation. Even if training levies are within the Act's subject matter, this omission creates a procedural ultra vires problem. Parliament made consultation a condition of exercising the power; accurate calculations or parliamentary popularity do not supply the missing step.

Change the facts. The minister invites the required organisations to give views, considers their responses and adopts a proposal they oppose. Disagreement with the consultees does not itself prove a failure to consult. Consultation gives a legally required opportunity to contribute, rather than necessarily giving consultees a veto. The adequacy of a disputed process depends on the statutory requirement and what happened, so a court must examine the facts rather than assume that every unpopular decision is procedurally unlawful.

This distinction matters for fair participation. Consultation can expose unintended burdens and make the decision better informed. But procedural compliance cannot by itself prove that the resulting policy is fair. Conversely, a policy perceived as beneficial does not excuse ignoring a mandatory procedure. A court considering delegated legislation thus protects the conditions Parliament attached to its power as well as the power's subject matter.