iso 50001 Lead Auditor

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About Energy Professionals International (EPI) ISO 50001 Lead Auditor certification

The ISO 50001:2018 Energy management systems standard has a dual focus on the development of an energy management system (EnMS) and data-driven improvements in energy performance. This dual focus requires a set of skills in the business processes of a management system and the technical requirements of energy performance that are unique in the field of conformity assessment. Since global energy consumption represents the largest contributor to greenhouse gas emissions, effective and robust implementation of ISO 50001:2018 has the potential to be a significant driver in efforts to reduce these emissions.

The effort addresses the lack of skilled and trained personnel available to review organizations’ EnMS, with a particular focus on the need for knowledge and skills to effectively conduct audits of organizations seeking certification to ISO 50001. Establishing a consensus-based, international certification scheme will support greater consistency in ISO 50001:2018 certification outcomes, thus increasing the impact of ISO 50001:2018 and, more generally, demonstrating the value of EnMS business practices to industrial, commercial, and public sector organizations.

The ISO 50001 Lead Auditor certification offered by IEnMP will enable certified persons to be recognized by EPI participating countries.

The purpose of the ISO 50001 Lead Auditor credential is to support the creation of an international workforce focused on maximizing the energy savings impact of ISO 50001:2018 implementation in industrial, commercial, and public sector organizations.

This consensus-based, internationally relevant certification scheme for ISO 50001 Lead Auditor builds greater consistency and higher value in ISO 50001:2018 implementations. This credential ensures the qualified candidate is competent in all of the ISO 50003 technical areas: buildings, building complexes, industry – light to medium, and heavy industry. Within the context of the audit plan, the ISO 50001 Lead Auditor will be able to:

  • Plan, lead and manage an ISO 50001 audit team effectively to ensure the audit objectives are met;
  • Conduct the ISO 50001 audit in conformance with ISO 50003 requirements;
  • Assess conformance to ISO 50001- Energy management systems standard, which includes confirming continual improvement of energy performance and any additional organizational requirements;
  • Document and report audit findings based upon objective evidence;
  • Effectively manage the relationship with the client and the auditee; and
  • Communicate, justify, and take responsibility for the audit results both verbally and in a written report to the client.


The ISO 50001 Lead Auditor Certification
is ANSI/ISO/IEC 17024 accredited.


A fee of $500.00 dollars is payable with the filing of the application. No application or examination fee refunds are allowed.

For each re-examination held via Remote Testing, a fee of $200.00 will be required. No refunds allowed.

Three-year renewal fee: $150 for ISO50001 LA certification until 12/31/2021

$300 Renewal Fee for all certifications due after January 1, 2022.

No refunds allowed.


Minimum Requirements


OptionAcademic CredentialsWork ExperienceAudit Days
1Technical academic degree

3 or more year academic degree from accredited educational institution in one of the following technical fields - energy management, engineering, architecture, science, or math.
48 MonthsMinimum of 15 audit days
2Non-technical academic degree

3 or more year academic degree from accredited educational institution in other disciplines
60 MonthsMinimum of 15 audit days
3Technical vocational degree

Minimum 2 year degree from accredited educational institution in a technical field.
72 MonthsMinimum of 15 audit days
4Other96 MonthsMinimum of 15 audit days

AND – Documentation of 15 audit days within the last 5 years that include the following:

  • Minimum of 5 audit days in the role of a Lead Auditor for an ISO management system standard
  • Minimum of 5 audit days for ISO 50001 Energy Management System Standard

NOTE: Audit days can include internal audits, audit planning and audit reporting. The submitted audits require employer verification to count toward the audit day requirement. It is the responsibility of the candidate or certified person to coordinate the employer verification of the audit days. The employer verification should be sent to directly from the individual attesting to the audit days conducted.

An audit log template can be downloaded here.

A candidate will receive the ISO 50001 Lead Auditor certificate only after both

  1. Having passed the examination; and
  2. Having submitted evidence of satisfying the Education, Experience, and Audit Day eligibility requirements.

Management System and Energy Management Experience

  • Management system experience is defined as implementing or auditing an ISO management system standard.
  • Energy management experience is defined as energy efficiency experience in facilities, projects, or programs.

Provisional Status
New candidates who commit to obtaining the required number of audit days within 12 months will be allowed to take the exam.    If the exam is passed, the candidate will be issued a provisional certificate for a 12 month period.   If the candidate obtains the required number of audit days within 12 months of the provisional certificate issue date, the individual will become certified as an ISO 50001 Lead Auditor.   If the candidate does not obtain the required number of audit days within the 12 month period, the exam must be retaken after the required audit days are obtained.


Current Training Courses

Our training partner, GA Tech currently offers training at this time.

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Exam Information and Preparation

ISO 50001 Lead Auditor Exam Preparation

The exam includes the following topics:

Energy Performance Auditing; EnMS Auditing; MS Auditing; General Auditing; Team Leader Duties for Pre-Audit, Stage 1, Stage 2 Audits; Communications; Energy Fundamentals for Technical Area Knowledge; and General ISO 50001 Audit Knowledge.

The exam will be scheduled via AEE Remote Proctoring

The following references can be used during the exam:

  • ISO 50001:2018 Energy Management Systems – Requirements with Guidance for use
  • ISO 50003:2014 – Energy management systems – Requirements for bodies providing audit and certification of energy management systems
  • ISO 17021:2015 – Conformity assessment – Requirements for bodies providing audit and certification of management systems
  • Scratch paper and pencils
  • 12in X16in white board to the list of reference items

It is suggested that you bring a hand held calculator to use during the exam. You may use any non-programmable scientific, business/financial or graphing calculator.

The following section summarizes the body of knowledge covered on the EPI 50001 Lead Auditor exam:



Overview The IEnMP policy for awarding recertification is to allow certificants three years from the date of certification to meet recertification requirements, which are:

  • Adhering to the IEnMP Standards of Professional Practice.
  • Completing Continuing Professional Development requirements.
  • Paying required fees and verifying contact information; and
  • Remaining current with any changes to normative references that may impact the scheme.

IEnMP Standards of Professional Practice Regardless of any other professional affiliation, these IEnMP Standards of Professional Practice apply to those individuals applying for certification (Candidates) or certified by IEnMP (Certificants). The IEnMP Standards of Professional Practice establish appropriate and enforceable professional conduct standards and explain the minimal ethical behavior requirements for Candidates and Certificants. As a Certificant or Candidate, the IEnMP Standards of Professional Practice should guide work with any client. In these Standards of Professional Practice, the term “client” includes any other individual or individuals with whom the Candidate or Certificant interacts. The IEnMP Standards of Professional Practice are as follows:

  • Conduct my business and/or professional activities with honesty and integrity.
  • Represent my certifications and qualifications honestly and provide only those services for which I am qualified to perform.
  • Strive to maintain and improve my professional knowledge and competence through regular self-assessments and continuing education or training.
  • Act in a manner free of bias and discrimination against clients or customers.
  • Maintain the privacy of individuals and confidentiality of information obtained in the course of my duties unless disclosure is required by legal authority.
  • Follow all certification policies, procedures, guidelines and requirements of IEnMP.
  • Act in accordance with all applicable national and local laws and regulations, which include all applicable business, employment, copyright, and intellectual-property laws.

Continuing Professional Development Requirements Continuing Professional Development is the ongoing learning process a Certificant employs to advance professional knowledge, skills and abilities. Completion of this process is necessary to maintain the IEnMP credential. There are two categories of activities needed for recertification; 1) Continuing Education and 2) Continuing Work Experience. Continuing Education During the three-year recertification interval, the certification holder must complete a minimum of 10 PDHs. Qualifying topics include: auditing, energy performance, measurement and verification, process improvement, project management, energy systems, integration of ISO 50001 with other Management Systems (MS) standards, auditing of MS standards, teaching a course in any of the topics named here, and items specified by IEnMP. The activity must be started after the certification is attained, and completed before the end of recertification voluntary lapse.

CategoryPDHDocumentation to Obtain
Conferences, Seminars and Workshops includes non-college courses, company sponsored by professional organization or by an independent consultant.

Courses (including webinars)

Webinars or exams scheduled to address changes in standards impacting ISO 50001

Participation in Energy industry promotion activities

Certification – awarded by technical or professional organizations

1 PDH per contact hourDocumentation supporting each activity may be submitted to IEnMP on the CE Template (See Apply for Recertification). Documentation may include (but is not limited to):

Copy of Certificate earned
Name and signature of Training Sponsor
Name and signature of Immediate Supervisor or Manager
Copy of handwritten sign in sheet
Copy of Identification badge
Copy of confirmation email upon completion of formal directed home study course
College Credit Courses10 PDHs per credit hourProof - transcript and statement of which exam content outline topics the course is related to
Continuing Work Experience During the three-year recertification interval, evidence must be submitted verifying that the Certificant has achieved a minimum of 15 ISO 50001 Audit Days, of which 5 audit days must be in the role of Lead Auditor. Qualifying audit days must be started after the EPI Lead Auditor certification is attained and completed before the end of recertification voluntary lapse. Audit days are documented on an audit log submitted at the time of recertification.

An audit log template can be downloaded here.