The ISSP Sustainability Professional Certification program allows sustainability professionals to earn credentials that recognize their knowledge, skills, and abilities in the field. There are two levels of credentials:

  • ISSP Sustainability Associate (ISSP-SA): For individuals who are new to sustainability or those in allied professions such as purchasing, HR,  and facilities management who incorporate sustainability thinking into their work
  • ISSP Certified Sustainability Professional (ISSP-CSP): For veteran sustainability professionals with five or more years of experience working in the sustainability field
For more information, click on the buttons below or check out the credentialing brochure.
Earning an ISSP credential opens up career opportunities for sustainability professionals and also helps businesses and organizations find the best members of the field.
Learn more about eligibility requirements for the two levels of credential exams: the ISSP Sustainability Associate (ISSP-SA) and ISSP Certified Sustainability Professional (ISSP-CSP)
Review an outline of the core competencies of sustainability professionals and the basis for the ISSP Certification Scheme to see if you have the knowledge, skills, and abilities to get credentialed
Register for the ISSP-SA, apply for the ISSP-CSP, and learn more about scheduling, rescheduling and other important exam information.

The ISSP Certification Candidate Handbook contains important information about both the ISSP-SA and ISSP-CSP exams, including the application process and exam policies.
Purchase Study Guides and Flash Cards for the ISSP-SA and ISSP-CSP credential exams.

Learn more about the requirements for maintaining an ISSP credential once it has been earned, including a list of activites pre-approved for earning Continuing Education Credits (CEUs).
See our full list of certified ISSP Sustainability Associates (ISSP-SAs) and ISSP Certified Sustainability Professionals (ISSP-CSPs).

See the list of ISSP Education Partners, leaders in sustainability education and training who provide credential exam preparatory courses as well as overall sustainability programs of study.
See a list of ISSP members and organizations who have declared their support for the development of the ISSP Certification program.

Have questions about ISSP Certification? Chances are, someone has already asked them! Check our list of Frequently Asked Questions to find out.

Watch the latest Certification Info Session and learn more about the history behind ISSP Certification, including the many people who have contributed.