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Real Time Information (RTI) Rules and Interface Management (RIM) artefacts and supporting technical specifications for software developers.
Find out if you need to use the UKCA (UK Conformity Assessed) marking on products you manufacture or handle.
Details of our past themed competitions.
Use this technical documentation for individual returns if you're a software developer working with the Self Assessment online service.
Find guidance for software developers working with the Corporation Tax online service.
Specifications of children in need census reports that local authorities can run in COLLECT.
As a planning authority, find out how to review applications that might affect protected sites and areas.
Details of sediment and sample analysis for marine licence applications.
How to use an ethnographic study to evaluate your digital health product.
Form PF90C: Request for issue of a Writ of Specific Delivery where order made under rule 83.14(2)(b) (rules 83.9(3) and 83.14(2)(b)).
Find schema and technical specifications for Construction Industry Scheme Online software developers.
How to apply for British citizenship if you're a British overseas citizen, protected person, subject, national or overseas territories citizen - who's eligible, fees and where to send your application.
If the UKCA marking applies to products you manufacture or supply, you will have specific obligations and responsibilities for compliance, depending on your role.
How to write up and share your findings
Read Income Tax guidance for software developers working with payroll software.
Follow these steps when preparing to make an exports declaration on the Customs Declaration Service.
Advice and guidance on the health needs of migrant patients for healthcare practitioners.
Don’t include personal or financial information like your National Insurance number or credit card details.
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