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with another current file unless a copy of the paper can beconveniently placed on the first file.(ii)When files are to be linked, strings of the file board of the lowerfile (but not its flaps) will be tied round the upper file and thoseof the file board or flap of the upper file tied underneath it in abow out of the way so that each file is intact with all itsconnected papers properly arranged on its file board or flap.(iii)On receipt after completion of action, the linked files will beimmediately delinked after taking relevant extracts and placingthem on the linked files, where necessary.40.22 Use of urgency gradings(i)The two urgency gradings authorised for use on cases are‘immediate’ and ‘priority’.(ii)The label ‘immediate’ will be used only in the cases requiringprompt attention. The “Priority’ label will be used for caseswhich, though not warranting prompt attention, have normallyto be given precedence over those not bearing any urgencygrading.(iii)The grading of urgency assigned to a case will be reviewed byall concerned at different stages of its progress and, wherenecessary, revised. This is particularly important for casesproposed to be referred to other departments.Page 266 of 266