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 Certification Board oversees the programs to assure they are uniformly administered consistent with the best certification practices as recognized by the National Organization for Competency Assurance and The Institute for Credentialing Excellence, ISO 17024.

Why Get Certified?
  • Gain recognition from your peers.
  • Become more valuable to your organization and customers.
  • Offers a competitive advantage.
  • Potential for increased income.
  • Commitment to ongoing educational opportunities and knowledge.
  • Immediate credibility to professionals in highly technical fields in the industry.

Exam Registration
You can register for any of the exams at each location.  For a list of all scheduled STLE certification exam dates and locations, view our calendarTo register for an exam, please complete the form below and submit. Once your registration is completed, a confirmation email will be sent to you.

STLE Member-First Time- $440
Non-Member- First Time- $590

STLE Member-Retake- $220
Non-Member- Retake- $295


Download and save this form to your desktop. Then complete the form and email or fax back to STLE Headquarters at

All registrations must be completed no later than 2 weeks prior to the requested exam date to ensure materials are available. Any registrations received past the 2 weeks registration deadline will not be processed and you will be requested to register onsite on the date of the exam (limited to first come, first serve basis).  For registration questions or assistance, please email or call (847) 825-5536.