‹ UG-2.1.5 UG-2.2 Volume Structure › UG-2.1.6 Each Volume has its own appendix Volume containing relevant reporting and authorisation forms; a glossary; and any supplementary information. In all cases, the main Volume is called 'Part A' and the appendix Volume is called 'Part B'. ‹ UG-2.1.5 UG-2.2 Volume Structure ›