ISO 50001:2018 Transition

As reported in earlier posts (ISO 50001:2018 for Energy Management Systems publishedUKAS Technical Bulletin – Imminent Publication of ISO 50001: 2018 published), ISO 5001:2018 has been published (21 August 2018).

What are the implications on organisations holding existing ISO 50001:2011 accredited-certificates?

The International Accreditation Forum (IAF) made a Resolution 2017-14 earlier in 2017 entitled “Transitional Arrangements for the revision of ISO 50001:2011, which stated:

“The General Assembly, acting on the recommendation of the Technical Committee, resolved that the Transitional Arrangement for the Revision of ISO 50001:2011 Energy Management Systems – Requirements with guidance for use, be three years from the date of publication (21 August 2018) of the revised standard.

All ISO 50001:2011 certifications shall expire or be withdrawn at the end of the transition period (21 August 2021).

Within this transition timeline:

  1. Accreditation Bodies (ABs) shall be ready to carry out transition assessments for ISO 50001:2018 within 6 months (21 February 2019) from the date of publication of the revised standard.
  2. Conformity Assessment Bodies – Certification Bodies (CABs) shall complete the transition with ABs for ISO 50001:2018 within 18 months (21 February 2020) from the date of publication of the revised standard.
  3. CABs shall cease conducting audits, including initial, surveillance and recertification to the ISO 50001:2011 18 months (21 February 2020) from the date of publication of the revised standard. The outcomes of such audits to the revision of ISO 50001:2011 shall be considered by the CAB for further decision on accredited certifications to ISO 50001:2011 as deemed appropriate”.

As with other transitions, such as ISO 14001:2015 & ISO 9001:2015, transition at the earliest stage is encouraged as there are benefits to your organisation to promote your early transition within your supply chain and to customers. Additionally, there can be availability problems for Certification Bodies and their Auditors to meet transition audits close to the transition deadline (21 August 2021).


  1. Review your status for transition to ISO 50001:2018 with your certification body.
  2. Prepare your revised Energy Management System and documentation in-line with the transition between 21 February 2019 – or earlier & 21 August 2021).
  3. Make your transition and gain the benefits of energy performance.
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