We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services.
We also use cookies set by other sites to help us deliver content from their services.
You have accepted additional cookies. You can change your cookie settings at any time.
You have rejected additional cookies. You can change your cookie settings at any time.
Departments, agencies and public bodies
News stories, speeches, letters and notices
Detailed guidance, regulations and rules
Reports, analysis and official statistics
Consultations and strategy
Data, Freedom of Information releases and corporate reports
Find out what you should consider before using an umbrella company to make sure it complies with the tax rules.
Examples of how and when to adjust the customs value for commercial level and quantity when using Methods 2 or 3 if you’re an importer or clearing agent.
Compare different evaluation approaches and choose an appropriate method.
How to use A/B testing to evaluate your digital health product.
Information on comparator products used in studies supporting abridged marketing authorisation application.
Constellation’s purchase of Aston Barclay will move to an in-depth Phase 2 investigation after the CMA identified potential competition concerns.
How to use a crossover randomised controlled trial to evaluate your digital health product.
Don’t include personal or financial information like your National Insurance number or credit card details.
To help us improve GOV.UK, we’d like to know more about your visit today. Please fill in this survey (opens in a new tab and requires JavaScript).