When measures apply: crowd management period
12.—(1)  The duties prescribed in this Part and the First Schedule apply only during the crowd management period for the provision of an authorised service, or a Part 3 private social event or defined event, unless expressly otherwise provided.
(2)  The crowd management period for the provision of an authorised service, a Part 3 private social event or a defined event, conducted in or using any place is —
(a)where the place is a restricted place, the restricted period specified in Part 1 of the Second Schedule to the ARC Regulations opposite the restricted place; or
(b)where the place is not a restricted place, the period that the place is open to the general public in connection with the provision of the authorised service.