https://www.gov.uk/government/publications/uksv-national-security-vetting-vetting-information-leaflets
[Withdrawn] UKSV National Security Vetting: vetting information leaflets - GOV.UK
Information about the vetting clearance process produced by United Kingdom Security Vetting (UKSV).
national securityinformation leafletswithdrawnuksvvetting
https://www.gov.uk/government/news/coronavirus-changes-to-uksv-services
Coronavirus: Changes to UKSV Services - GOV.UK
UKSV is currently operating, with a significantly reduced workforce, in support of the COVID-19 containment effort.
services govcoronaviruschangesuksv