Security Vetting Services

As a member of ADS, we can support you and your organisation in obtaining the necessary National Security Vetting (NSV) clearances to access relevant classified Government material and contracts.

Whenever a contract is issued by Government, there will be Security Aspects Letter (SAL) which confirms all the security requirements for the contract including the classification of information; OFFICAL, SECRET OR TOP SECRET.

Security Vetting Services Banner

What we offer

ADS can support member applications for the following security clearances:

Baseline Personnel Security Standard (BPSS)

The BPSS process MUST be completed before a person can apply for a NSV.

National Security Vetting (NSV)

– Counter-Terrorist Check (CTC)

– Security Check (SC)

– Enhanced Security Check (eSC)

How to apply

In order to use this service, you must meet the following requirements:

  • You must be an ADS member;
  • You must have an MOD contract which has a security clearance requirement (we will require the contract number and expiry date)


  • You must have a letter from an MOD official confirming the requirement for security clearance.

Once you can meet these requirements, you can download and complete the ADS Security Clearance Booking Form, BPSS Application Form and ADS Security Clearance Policy Agreement via the Member Area.

Once these forms are completed, please contact the ADS Security Vetting Team at They will be able to provide more details and start your application.


If you have any initial queries on the NSV application process, check our Frequently Asked Questions for more information. Alternatively, please contact us.


Sam Newman, ADS Security Vetting Administrator
T: 02070917824

Security Vetting Training

ADS also offer security clearance training for members. To find out more please contact:

Paul Williams, ADS Personnel Security & Vetting Manager