|   | 1. | I                  have reviewed this quarterly report on Form 10-QSB/A of Hydrogen                  Engine                  Center, Inc.; |
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|   | 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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|   | 3. | Based                  on my knowledge, the financial statements, and other financial                  information                  included in this report, fairly present in all material respects                  the                  financial condition, results of operations and cash flows of the                  registrant as of, and for, the periods presented in this report; |
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|   | 4. | The                  registrant's other certifying officer and I have disclosed, based                  on our                  most recent evaluation of internal control over financial reporting,                  to                  the registrant's auditors and the audit committee of the registrant's                  board of directors (or persons performing the equivalent functions): |
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|   | a. | All                  significant deficiencies and material weaknesses in the design                  or                  operation of internal control over financial reporting which are                  reasonably likely to adversely affect the registrant's ability                  to record,                  process, summarize and report financial information; and |
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|   | b. | Any                  fraud, whether or not material, that involves management or other                  employees who have a significant role in the registrant's internal                  control                  over financial reporting. |
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| May                  19, 2008 | /s/                  Donald C. Vanderbrook |
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|                          | Donald                  C. Vanderbrook     |
|                          | Chief                  Executive Officer   |

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