STLE Certification Programs

Advance Your Career in Tribology and Lubrication Engineering with STLE's Certifications. 
STLE offers four technical certification programs: Certified Lubrication Specialist™, Certified Metalworking Fluids Specialist™ and Certified Oil Monitoring Analyst I & II™. The STLE Certification Committee oversees the programs to assure they are uniformly administered, consistent with certification best practices as recognized by the National Organization for Competency Assurance and the Institute for Credentialing Excellence, ISO 17024. 

Certified Lubrication Specialist™

What is a Lubrication Specialist?
A Lubrication Specialist is an individual who might be designated a "Lubrication Engineer" by his/her employer. However, it is not limited to this designation, as individuals from varied backgrounds, including sales and management, opt to become CLS certified to increase their credibility/standards.

Certified Metalworking Fluids Specialist™

What is a Metalworking Fluids Specialist?
Certified Metalworking Fluids Specialists are those individuals who have met minimum standards of experience, knowledge and written requirements as established by the STLE Metalworking Fluids Certification Committee to provide technical consultation in the field of metalworking fluid management. Individuals should have a basic knowledge of fluid chemistry, machining processes, metallurgy, tooling filtration and waste treatment.

Certified Oil Monitoring Analyst I™

What is an Oil Monitoring Analyst?
Predictive maintenance professionals who oversee the oil analysis program for a shop/plant would be suited for OMA I certification, while professionals working at the supervisory level are more suited for OMA II certification. OMA I is recommended for mechanics, engineers, operators, tradesmen, chemical managers or on-site lab personnel.

Certified Oil Monitoring Analyst II™

What is a OMA II?
Professionals working at the supervisory level are more suited for OMA II certification. OMA II is recommended for reliability engineers, lubrication engineers, tribologists, maintenance supervisors or onsite/commercial lab management.

How to sign up for the exam

Remote Exams

This option allows candidates to take STLE certification exams at home or in a private work environment on their personal computer at a time and date that works best for them. This delivery method requires a secure internet connection, webcam, and the ability to download the lockdown browser on your personal computer. Check to confirm your computer meets the requirement: Online Testing Requirements: What You Need to Know (force.com).  Remote exams offer instant results and feedback upon completion of the exam.   

In-Network Testing Centers
This option allows candidates to take STLE certification exams individually, in person, at any of our in-network testing centers (over 1,100 worldwide) at a time and date that works best for them. Find a testing center near you here.  This delivery method uses the same lockdown browser but provides candidates with a computer and an in-person certified proctor. In-Network Testing Center exams offer instant results and feedback upon completion of the exam. 

Group-Sponsored Exams 
Group-Sponsored exams are in-person exams hosted by a third-party primary offered after an exam preparation course. This delivery method requires the sponsoring company to provide an eligible proctor, suitable location, and system ready computers. All group exam registrations must be submitted no later than 3 weeks  (4 weeks for international) prior to the exam date. Any registrations received past this deadline might not be processed in time. 

To register for an exam, you will be required to create or log in to your STLE account first.  Please be sure that your profile is up to date with all your current contact information. After logging in, click the Certification Registration button to access the Submittable online application.  After your application is processed, you will be instructed to access your STLE online account to pay the exam fee, which is separate from any training you may sign up for as part of the group event.   For registration questions, scheduling a group exam, or further assistance, please email  Certification@stle.org or call (847) 825-5536.