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Cornerstone Diagnostics
Training Institute



Welcome to the Cornerstone Diagnostics Online Training Institute. As one of the fastest growing drug and alcohol testing companies in the nation, we have acquired a comprehensive knowledge base. We pride ourselves on always having the most up-to-date information, parallel to any related guidelines or regulations.

To enroll in a course, contact Cornerstone Diagnostics and obtain an access code.

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About Us >>

Cornerstone Diagnostics is one of the fastest growing drug and alcohol testing companies in the nation.


Courses >>

Cornerstone Diagnostics offers a variety of training courses to educate employers, employees, collectors, parents, etc. about drug and alcohol testing...