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Exhibit 10.1
280G EXCESS PAYMENT WAIVER

WHEREAS, MEDTOX Scientific, Inc. (the “Company”), Laboratory Corporation of
America Holdings (the “Parent”) and Mercer Acquisition Corp. (“Merger Sub”) are
currently negotiating the terms of a Merger Agreement (the “Merger Agreement”)
pursuant to which Merger Sub would merge with and into the Company, with the
Company surviving as a wholly-owned subsidiary of Parent;

WHEREAS, if the merger contemplated by the Merger Agreement is consummated,
there will be a “Change in Control” of the Company for purposes of Sections 280G
and 4999 of the Internal Revenue Code of 1986, as amended (the “Code”);

WHEREAS, as a result, certain payments (the “Payments”) that Susan E. Puskas
(“Executive”) is entitled to or may receive as a result of the “Change in
Control” may constitute “excess parachute payments” under Section 280G of the
Code and may result in the Executive paying an additional excise tax on certain
of such Payments;

WHEREAS, the Executive now desires to waive certain of the Payments, but only to
the extent such a waiver would provide the Executive with a greater after-tax
result than if such Payments had not been waived;

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the Executive hereby agrees as follows:

1.          The Executive hereby irrevocably waives any right to receive or
retain that portion of the Payments that would equal or exceed three times the
Executive’s “base amount,” as defined in Q&A 34 of Treasury Regulation 1.280G-1
(the “280G Excess Payments”) if, as a result of waiving a portion of such
Payments, the aggregate after-tax amounts received by the Executive from the
Company would be greater than the maximum after-tax amount that could be
received by the Executive in the absence of such a waiver.

2.          In the event that 280G Excess Payments are waived pursuant to this
waiver, then the portion of the Payments that are cash severance or bonus
payments shall be reduced or eliminated so as to avoid having the payment or
benefit to the Executive be deemed to be a 280G Excess Payment.

/s/ Susan E. Puskas________
Susan E. Puskas

 
Date: __May 31, 2012______
 

 
Accepted and Agreed:
 

 
MEDTOX Scientific, Inc.
 

 
By:_/s/ Robert A. Rudell________
 
Date:__June 1, 2012____________
 

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