An application form to purchase a new grave or to re-open an existing plot if the funeral is to be a burial. The existing Deeds will be normally be required.
If the Coroner is to hold an inquest there will be no green form and instead the Coroner will issue an Order for Burial (form 101). This is usually collected by the funeral director from the coroner's service on your behalf.
If a burial is being organised urgently for reasons of faith, it is sometimes possible to obtain a green form from the Registrar prior to full registration of the death. A Medical Certificate of Cause of Death should normally have been issued.