The Certified Automotive Parts Association (CAPA) is a non-profit organization established in 1987 and based in Washington, DC, United States, to develop and oversee a test program guaranteeing the suitability and quality of automotive parts. 

 

Skews or Product Numbers Ending With "C" are Capa Certified Products on www.Partshub.ca

Example:  CH1002501C or TO123456C 

 

 

 https://en.wikipedia.org/wiki/Certified_Automotive_Parts_Association