Unlike applications for leave to remain (Immigration Rules, Part 1, para 34) all applications for entry clearance are not currently subject to any detailed general requirements in the Immigration Rules relating to validity; however new categories (such as Skilled Worker) do have validity requirements which cover applications for entry clearance, and where these are not met the application ‘is invalid and may be rejected and not considered’. In relation to Skilled Worker, for example, these validity requirements include as follows (at Immigration Rules, Appendix Skilled Worker, para SW 1.2): ‘(a) any fee and Immigration Health Charge must have been paid; and (b) the applicant must have provided any required biometrics […]’ For an application for entry clearance for more than six months, the requirement to provide biometrics, and for an application to be valid, derive from the requirement to apply for a