Certification requirements

The security-relevance of the reverse vending machines

Reverse vending machines generate an electronic data set for each valid, compulsory-deposit one-way drinks packaging with which they are fed, this serving as a basis for deposit clearing in the DPG-System.

Since each of these raw data sets has a value of 25 cents, it must be ensured that

  • the recognition of DPG packagings by Reverse Vending Machines is reliable
  • That DPG packagings for which a data set has been generated have been reliably devalued
  • That packagings not entitled to a deposit are reliably rejected
  • That for each input DPG packaging no more than one data set can be prepared
  • That a counterfeiting of raw data sets can be fully excluded
  • That a duplication of raw data sets is not possible


Two-Stage Certification Procedure

The certification procedure foreseen for the licensing of DPG collection machines is a two-stages procedure:

Stage 1 " Preliminary Check (once only)

The licensing of a counting centre is undertaken by DPG following a successfully completed preliminary check by one of the DPG licenced certification bodies. The preliminary check consists of the following part-checks:

  • Document Check
    This is a check to ensure that all of the necessary specification documents and proofs in accordance with DPG certification regulations are available (e.g. operating instructions, process description, etc).

  • Appraisal
    The appraisal is undertaken on the basis of the DPG checklist for counting centres and covers all DPG specifications. It consists of an "on-site" appraisal of the company-internal infrastructure by the experts(s) / auditor(s) of the certification body. After successful examination, a report on the certification is prepared and, following a Stage-1 Certificate, issued on the preliminary check. This is the precondition for a DPG licence.


  • Generation of raw data sets
    Apart from checking the mechanical components of the counting centres, a check on the IT side also forms a part of the certification. 6 months after passing the preliminary check (stage 1), at the latest, the first certification audit (stage 2) must be completed with the issuing of a certificate.

Stage 2 " Initial Certification

The first certification audit consists of an "on-site" appraisal by the certification body of the company-internal infrastructure. After successful initial certification a report on the certification is prepared and is issued as a Stage-2 Certificate.

After satisfying the initial certification or repeat certification, a certificate will be issued, this being valid for a maximum of 18 months, subject to the precondition that every 12 months a renewed repeat certification is undertaken on the basis of the DPG specifications valid at the time.