If you are required to register with the police as part of your Tier 4 visa conditions, then you must do this within 7 days of arriving in the UK - it is an offence not to do this.
The requirement to register with the police will be stated on one of your immigration documents. Please check all of these documents for the police registration requirement:
Your dependants may also be required to register with the police, so make sure they check their documents too.
You must remember to keep your Police Registration Certificate up-to-date, and report any changes in your student status to the police within 7 days.
This includes changes to your:
We may ask to see your police registration certificate at re-enrolment and Visa Checks, so remember to keep the certificate updated.