https://www.gov.uk/government/publications/disclosure-application-process-for-volunteers/disclosure-application-process-for-volunteers

This service allows applicants to keep their DBS Certificates up to date and also allows employers to check a DBS Certificate.  This ony applies to Standard and Enhanced Checks.

https://www.gov.uk/dbs-update-service

Guidance to help you decide whether a role is eligible for a basic, standard, or enhanced DBS check.

https://www.gov.uk/government/collections/dbs-eligibility-guidance

Up to date charges for DBS Fees (Updated October 2019)

https://www.gov.uk/government/news/fee-changes-for-dbs-checks