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Testing & Renewal
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OCNT Testing & Renewal Information


Exams for the Ohio Certified Nursery Technician (OCNT) specializations are offered monthly at ONLA's office in Westerville, Ohio. January testing is held in conjunction with ONLA's tradeshow, MGIX, over a three-day period in Columbus, Ohio. Each specialization exam is offered on a different day.

In August, testing is offered on three separate days at three different locations throughout Ohio. A testing day is offered in conjunction with the Nursery Growers of Lake County Ohio Summer Field Day. The location for this field day varies year to year, but will always be located in northeastern Ohio. All three specialization exams are offered at different times of each of the three testing days. Dates, times, and locations for the three summer test days vary from year to year.

Click date for test application (pdf):


Thursday, October 20, 2016 (ONLA)
Thursday, November 17, 2016 (ONLA)



Monday, January 16, 2017 (MGIX) Garden Center 
Tuesday, January 17, 2017 (MGIX) Grower 
Wednesday, January 18, 2017 (MGIX) Landscape & Core
Thursday, February 16, 2017 (ONLA offices)
Thursday, March 16, 2017 (ONLA offices)
Thursday, April 20, 2017 (ONLA offices)
Thursday, May 18, 2017 (ONLA offices)
Thursday, June 15, 2017 (ONLA offices)
Thursday, July 20, 2017 (ONLA offices)
Thursday, August 17, 2017 (ONLA offices)
Thursday, September 21, 2017 (ONLA offices)
Thursday, October 19, 2017 (ONLA offices)
Thursday, November 16, 2017 (ONLA offices)


Eligibility Requirements

Anyone may obtain the certification training manuals. However, for an individual to take the examination and be granted Ohio Certified Nursery Technician status (upon obtaining a passing grade) he or she must meet the following pre-requisites: worked 1000 hours in the green industry OR worked 500 hours in the green industry and be currently enrolled in or have successfully completed a recognized Horticultural Program (i.e. college or high school OR worked 1500 hours as a volunteer in the green industry at an arboretum, botanical garden, or as a master gardener.

A testing fee of $35.00 ($70.00 for non-members) will be charged. A retesting fee of $30.00 ($60.00 for non-members) will be charged. NOTE: The retest must be taken within one year of the original test date to qualify for the retest fees. Study materials are available for purchase at the ONLA store.


Certification will be for a period of three years. Certification may be renewed every three years by accumulating five credits of training during the three year period and paying a renewal fee of $25.00 (non-members $50.00). Renewal of Master OCNT status is a flat rate of $50 for ONLA members ($100 for non-members). Credits are given for attendance at seminars, educational programs and other functions from a Certification Committee approved list. 

Certification is held by an individual. Reporting training credits and changes of address or employer is the responsibility of that individual.

Click here for OCNT Rules & Regulations          Need to report OCNT Credits? (click here for pdf)      

Click here to purchase OCNT study materials

 If you have any questions, please feel free to contact Roni at (614) 899-1195 or


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