FHDDS25200 | Policy and background: due diligence: types of due diligence
From HM Revenue & Customs · VAT Fulfilment House Due Diligence Scheme
For more information about the types of due diligence a business might undertake, and for the mandatory aspects of the scheme, see section ‘what you must check’ in Notice FH1: the Fulfilment House Due Diligence Scheme.