4. Subject to regulation 5, companies who are producers and are in a group of companies shall comply with their producer registration obligations for a relevant year by—
(a)being registered for that year with the Department as required by regulation 6, in which case each company so registered has its own recovery and recycling obligations, certifying obligations, and, where applicable, consumer information obligations; or
(b)the holding company and one or more of the subsidiaries being registered together for that year with the Department, (in this Schedule and Schedule 10 referred to as a “group registration”) in which case paragraph 5 below shall apply.