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The information clients, principal designers, principal contractors and accountable persons need to keep.

• Updated: 18 September 2024

Apply to give up (renounce) your British citizenship or status - ‘declaration of renunciation’

• Overview

  You can apply to give up (renounce) your British citizenship or status. If…

• Apply

  Fill in the form online. You’ll usually be able to keep your documents…

• After you've applied

  You’ll get a ‘declaration of renunciation’ if your application is…

• Resume your British nationality

  In some cases it’s possible to resume your British nationality after…

How to apply for a clinical trial including eligibility, phases, model IMPDs, costs and how to make changes to your application.

• Updated: 15 January 2026

Guidance for exporting nuclear equipment, material and technology that appears on what is known as the 'Trigger List'.

• Updated: 8 September 2025

Apply for British citizenship if you have a British parent - who's eligible, fees and how to apply

An overview of voting in the UK, including voting in person, postal and proxy voting, and voting if you're abroad.

Appealing to a Mental Health Tribunal if you're sectioned: how to appeal, what happens at a hearing and what to do if you lose your case

Employment Appeal Tribunal Judgment of Judge Tayler, Mrs Rachael Wheeldon and Mr Steven Torrance on 19 January 2026.

• Updated: 19 January 2026

Help someone make decisions if they appoint you or if they lack mental capacity - includes using a power of attorney, becoming a deputy and getting a one-off Court of Protection ruling

How you can have a marriage annulled, the reasons you can give for annulling a marriage and the forms you will need to apply for an annulment. This includes information from the withdrawn D191 guide.