Sustainability – ISCC

Certification in the ISCC system consists in checking the permanent compliance with the requirements of European, national legislation, demonstration of the sustainability of raw materials and products in all unregulated markets and sectors, as well as demonstration of compliance with CORSIA (Carbon Offset and reduction for International Aviation) Requirements in accordance with the applicable referentials.

Stages of certification


It is made by the interested operator who contacts CertRom by phone, fax, e-mail or by visiting the company’s premises to obtain information about the certification process in the ISCC system. This fills in and sends to CertRom the form “Request for initiation of the ISCC certification process”, available on the CertRom website, Documents section.

Request analysis

It is done by CertRom competent personnel to ensure that the following conditions are met before concluding a contract to certify that the sustainability criteria are met according to the requirements of the required ISCC system related to the applicant’s activity, the following conditions are met:

  • operator requirements for ISCC certification are clearly defined, documented and understood;
  • there is the capability to provide the sustainable materials certification service in terms of the purpose of certification and the ISCC system required, the location of the operator’s activities and any other specific applicable requirements;
  • any differences of understanding between the parties are resolved.

Conclusion of contract

The conclusion of the certification contract is made after the analysis of the application, the result of which is favourable and the tariffs are accepted by the operator. In order to be able to use the ISCC certification system, the Operator must access the “Registration process” page on the official ISCC website and follow the steps to receive a registration number in the ISCC system.

Without ISCC agreement, CertRom will not be able to carry out certification based on the ISCC system, this being a suspensive condition for the execution of the contract.

Conformity assessment with the requirements of the requested and applicable ISCC system.

After signing the contract, the operator is requested to submit the documents necessary for performing the audit activities. After performing the audit activity at the operator, the audit is completed with an audit report (or several audit reports, as the case may be) containing the audit findings, prepared by certrom auditors and countersigned by the operator.

In situations where irregularities/non-conformities are found, they are dealt with in accordance with ISCC requirements and procedures, publicly available at

Decision analysis and certification

The analysis and certification decision is taken by the competent staff of CertRom for this stage, which after the analysis of the file issues the decision to grant or not grant certification. In the event of a favourable decision, the Certificate of Conformity and related annexes shall be issued.

Activity supervision

The mandatory surveillance audit applies to Operators who are at initial certification and handle sustainable material that may be eligible for additional incentives in EU Member States. The audit is carried out 3 months (waste/residue and vegetable oil handling) and/or 6 months (waste/residue handling) from the date of initial certification and focuses on traceability and mass balance requirements;

CertRom offers certification services according to:

  • Procedures and requirements of ISCC SYSTEM GMBH
  • DIRECTIVE 2009/28/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC (RED I)
  • European Commission note on the conducting and verifying actual calculations of GHG emission savings version 2.0
  • DIRECTIVE 2009/30/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 April 2009 amending Directive 98/70/EC as regards the specification of petrol, diesel and gas-oil and introducing a mechanism to monitor and reduce greenhouse gas emissions and amending Council Directive 1999/32/EC as regards the specification of fuel used by inland waterway vessels and repealing Directive 93/12/EEC (FQD)
  • DIRECTIVE (EU) 2015/1513 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 September 2015 amending Directive 98/70/EC relating to the quality of petrol and diesel fuels and amending Directive 2009/28/EC on the promotion of the use of energy from renewable sources
  • DIRECTIVE (EU) 2018/2001 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 11 December 2018 on the promotion of the use of energy from renewable sources (RED II)
  • National legal framework applicable if relevant Member States decided to prepare national sustainability schemes under RED and accredited them with EC
  • Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA)