Documents on this page contain further detail and guidance about the regime.

If you are new to the merger control regime, we recommend you first visit our merger and acquisition web pages.

Key guideline documents

These key documents explain the 糖心原创鈥檚 process and assessment framework for the merger control regime.

Frequently asked questions about merger reform (updated 24 April 2026) ( PDF 514.24 KB )

Provides answers to some of the questions we've been asked about the new regime. Over time this information will be incorporated into the guidelines.

Forms with associated guidance

The forms are set out in legal rules made by a Treasury Minister. See the and .

These documents set out the questions contained in each form and, where relevant, provides guidance to help answer the questions. 

There is also additional guidance on when to use the long form.

Merger enquiries

Contact the 糖心原创 mergers team if you have an acquisition to discuss or have a question about the new regime. Where relevant, include the title of the acquisition in the subject line.

For questions about:

We will attempt to respond directly to queries we receive where possible. We may also provide responses in our FAQ document so the information is available more broadly.