The Regulations amended the Control of Mercury (Enforcement) Regulations 2017 to implement EU changes regarding dental amalgam restrictions in Northern Ireland, updating customs enforcement provisions and defining transitional relief until 2034.

The Control of Mercury (Enforcement) (Amendment) Regulations 2025 amend the 2017 Regulations to implement new restrictions on mercury, focusing specifically on dental amalgam within Northern Ireland as required by the 2024 EU amendment regulation concerning mercury.

These changes update customs enforcement powers regarding import and export prohibitions and clarify temporary exemptions for existing use and import of dental amalgam by registered dental professionals in Northern Ireland until the end of 2034, while also adding corresponding reporting duties.

The Welsh Parliament (Disqualification) Order 2025 was made, identifying specific incompatible public offices, and the 2020 Disqualification Order was repealed, with commencement dates set for April 2026.

This Order, made by the King in Council under powers granted by the Government of Wales Act 2006, officially names itself the Welsh Parliament (Disqualification) Order 2025 and revokes the previous 2020 Order, although the 2020 Order remains effective for any Senedd election polling before April 6, 2026.

The primary function of the 2025 Order is to designate specific public offices listed in the Schedule whose holders are disqualified from being elected or remaining as a Member of the Senedd (MS), with the disqualification commencing its full effect for elections held on or after April 6, 2026.

Legislation amended the transitional provisions deadline within the commencement regulations for the Northern Ireland Troubles (Legacy and Reconciliation) Act 2023, pushing the cutoff date for certain criminal investigation processes from late 2025 to April 2026.

These Regulations, made by the Secretary of State for Northern Ireland using powers under the Northern Ireland Troubles (Legacy and Reconciliation) Act 2023, formally amend a previous commencement regulation (S.I. 2024/584).

Specifically, they extend the transitional deadline for investigating bodies to prepare or complete investigation reports or take subsequent actions from October 31, 2025, to April 30, 2026.

The Treasury designated the Deeside, Warren Hall, and Wrexham Industrial Estate areas as special tax sites for enhanced capital allowance purposes under the Finance Act 2021, effective November 21st, 2025.

These Regulations, enacted by the Treasury under powers from the Finance Act 2021, officially designate specific areas in Flintshire and Wrexham as 'special tax sites' effective from November 21st, 2025, based on their location within or connection to the designated investment zone; this formal designation qualifies expenditure on plant, machinery, structures, and buildings within these sites for enhanced capital allowances under the Capital Allowances Act 2001.

The instrument revoked the prior regulations that scheduled specific child protection reporting duties under the Online Safety Act 2023 to commence on November 3rd, 2025.

These Regulations, made by the Secretary of State under the Online Safety Act 2023, revoke the Online Safety Act 2023 (Commencement No. 5) Regulations 2025, thereby preventing specific provisions of the Act that mandate certain user-to-user service providers to report child sexual abuse and exploitation content to the National Crime Agency from coming into force on their scheduled date of November 3rd, 2025; this legislative action extends across England, Wales, Scotland, and Northern Ireland and is stated not to require a full impact assessment.

The Regulations conferred housing and regeneration functions from the HCA onto Buckinghamshire, Surrey, and Warwickshire County Councils, modifying the application of relevant 2008 Act provisions.

These Regulations formally transfer specific housing, regeneration, land acquisition, and financial assistance functions, previously held by the Homes and Communities Agency (HCA) under the Housing and Regeneration Act 2008, to Buckinghamshire Council, Surrey County Council, and Warwickshire County Council, enabling them to exercise these powers concurrently within their respective local government areas to meet local needs for housing, infrastructure, and community well-being.

The Warm Home Discount scheme in England and Wales was amended to extend the rebate period and increase administrative flexibility, while the Scottish scheme received a £39 million spending increase.

The Warm Home Discount (Amendment) Regulations 2025 amend existing regulations for England and Wales and Scotland.

For England and Wales, the amendments extend the rebate issuance period to March 31, 2026, and provide additional flexibility for suppliers and the Secretary of State in managing rebates.

In Scotland, the regulations increase the aggregate non-core spending obligation for scheme year 15 by £39 million.

The changes aim to improve the effectiveness and reach of the Warm Home Discount scheme.

The Order amended the Local Audit and Accountability Act 2014 and the Public Audit (Wales) Act 2004 to permit sharing of matched adult social care data with local authorities in England and Wales.

The Legislative Reform (Disclosure of Adult Social Care Data) Order 2025 amends the Local Audit and Accountability Act 2014 and the Public Audit (Wales) Act 2004.

These amendments allow the sharing of matched adult social care data with local authorities in England and Wales to improve fraud detection and financial recovery.

The Order was enacted under the Legislative and Regulatory Reform Act 2006, following parliamentary approval and consultation.