If you are required to apply for registration as a reprocessor or exporter of packaging waste or want to apply for optional accreditation, you must submit a sampling and inspection plan (SIP) using these templates.
Source
https://www.gov.uk/government/publications/extended-producer-responsibility-for-packaging-templates-for-sampling-and-inspection-plansCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.