Exhibit 31.3
Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, Mark J. Cola, certify that:
1. I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A for the year ended December 31, 2016 of Sigma Labs, Inc.; and
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
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Date: May 10, 2017 |
| By:/s/ Mark J. Cola |
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| Name: Mark J. Cola |
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| Title: President and Chief Executive Officer (Principal Executive Officer) |
