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ISO 45001:2018 has replaced OHSAS 18001.Click here for the new 45001 website.

Selecting a Registrar


We provide you with a quick and simple way of receiving multiple quotations from up to three different registrars at one time. Where ever your company is in its certification process, we are here to simplify.

  • Select Your Country
  • Choose Your Standard
  • Select Three Accredited Registrars to Receive Quotes From
  • Complete Form
  • Submit!

Quote Basics

The certification form is automatically sent to the OHSAS 18001 registrars you chose. You will receive a copy of your submittal, and we retain one for our records. You receive a quotation within 72 hours so you may select the registrar that will best fit your unique requirements.

Looking for the right registrar to audit your company can be confusing. That is why the has partnered with many different registrars around the world and has made them easy for you to find, choose, and hire to complete your company’s needs. (Or, to complete your registration audit.) We strive to find you the best registrar for your unique company and needs while saving you time and money. Our process is proven to decrease the time needed to find the proper registrar and complete required audits for OHSAS 18001 certification.

When you choose a Registrar you are starting a relationship that will last at least 3 years, most likely longer. You will want to make a careful decision to lay the groundwork for a smooth and lasting relationship.

Registrar Basics

Generally, when you sign a contract with a Registrar, it will include the Registration Audit and the Surveillance Audits. The Registration Audit is the initial audit that will be done to see if you will achieve registration. After you have your registration, the Registrar will come back every 6 or 12 months to see if you are maintaining your system and continuing to meet the requirements of the standard. Registrars vary in their approach, so you will want to find out details from each Registrar you are interested in.

You may find that the terms Registration and Certification are often used interchangeably. That is because the registration company, (the registrar), that you select recommends your management system for certification, registers your company and issues a certificate.

Your certificate will be valid for 3 years. After that period your registrar will be required to do another Registration Audit to renew your certification. The contract you set up with your Registrar will be for the three year period. You would renew your contract after three years to start the cycle again.

Registration Audit: An audit of your OHSMS system to see if you meet the requirements of the Standard and will achieve registration.

Surveillance Audit: A follow-up audit of a portion of your OHSMS to see if the system is being followed and maintained. These are done every 6 months or year.

Registrar Costs

The costs for the audits and registration will be dependant on the size of your company, the number of locations, the accreditations that you need, and the distance between you and your Registrar.

The costs are typically dependant on the number of audit days required for the registration audit and the surveillance audits, the travel costs for the auditors, and the administration fees and accreditation fees for the registration.

Choosing a Registrar

The most important factor in choosing a Registrar is how well they can work with you. This includes how well they know your industry, how much experience they have with similar companies, and how well they communicate with you and your employees.

Interview 3 or more Registrars to get a good idea of the options available and differences between Registrars. Look locally if you have good choices, it will save on costs, but if you do not find a good fit look farther. The benefits of your relationship with your Registrar will pay off. Remember that these are experienced professionals that spend day after day evaluating how companies do business. The feedback you get from them is one of the best benchmarking tools available.

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View Questionnaire to help you select a registrar

BSI Logo BSI Management Systems

BSI Management Systems is the leading registrar and training organization offering services to the following standards: ISO 9001:2008, AS9100, ISO 14001, OHSAS 18001 and TS 16949:2002

DNV DNV Certification

TS 16949, ISO 9001 and ISO 14001, OHSAS 18001, AS 9100, AS 9110, AS 9120, TS 9000, ISO 22000, Responsible Care 14001, RCMS, as well as other services including, training, CE Mark and product certification.

Complete List of Registrars

PDF Here is a complete list of ISO Registrars for all of the major ISO standards:

  • OHSAS 18001 Registrars
  • AS9100 Registrars
  • ISO 14001 Registrars
  • ISO 9001 Registrars
  • ISO 13485 Registrars
  • TS 16949 Registrars
  • And more…