National Protective Security Authority

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National Protective Security Authority (NPSA)

Agency overview
Formed	1999; 25 years ago (1999) (as the NISCC and NSAC)
Preceding agencies	National Infrastructure Security Co-ordination Centre (NISCC) National Security Advice Centre (NSAC) Centre for the Protection of National Infrastructure (CPNI)
Minister responsible	Secretary of State for the Home Department
Agency executive	Ken McCallum, Director General of MI5
Parent agency	Security Service (MI5)
Website	https://www.npsa.gov.uk/

The National Protective Security Authority (NPSA) is the national technical authority in the United Kingdom for physical and personnel protective security, maintaining expertise in counter terrorism as well as state threats.