**Exhibit        31.2**

**CERTIFICATIONS        PURSUANT TO**

**SECTION        302 OF**

**THE        SARBANES-OXLEY ACT OF 2002**

| 1. | I                  have reviewed this report on Form 10-Q of Global Clean Energy Holdings,                  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                  smaller                  reporting company as of, and for, the periods presented in this                  report; |
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| 4. | The                  smaller reporting company’s other certifying officer(s) and I are                  responsible for establishing and maintaining disclosure controls                  and                  procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))                  and                  internal control over financial reporting (as defined in Exchange                  Act                  Rules 13a-15(f) and 15d-15(f)) for the smaller reporting company                  and                  have: |
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|   | (a) | Designed                  such disclosure controls and procedures, or caused such disclosure                  controls and procedures to be designed under our supervision, to                  ensure                  that material information relating to the smaller reporting company,                  including its consolidated subsidiaries, is made known to us by                  others                  within those entities, particularly during the period in which                  this                  quarterly report is being prepared; |
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|   | (b) | Designed                  such internal control over financial reporting, or caused such                  internal                  control over financial reporting to be designed under their supervision,                  to provide reasonable assurance regarding the reliability of financial                  reporting and the preparation of financial statements for external                  purposes in accordance with generally accepted accounting                  principles; |
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|   | (c) | Evaluated                  the effectiveness of the smaller reporting company’s disclosure controls                  and procedures and presented in this report our conclusions about                  the                  effectiveness of the disclosure controls and procedures, as of                  the end of                  the period covered by this report based on such evaluation;                  and |
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|   | (d) | Disclosed                  in this report any change in the smaller reporting company’s internal                  control over financial reporting that occurred during the smaller                  reporting company’s most recent fiscal quarter (the smaller reporting                  company’s fourth fiscal quarter in the case of an annual report) that has                  materially affected, or is reasonably likely to materially affect,                  the                  smaller reporting company’s internal control over financial                  reporting. |
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| 5. | The                  smaller reporting company’s other certifying officer(s) and I have                  disclosed, based on our most recent evaluation of internal control                  over                  financial reporting, to the smaller reporting company’s auditors and the                  audit committee of smaller reporting company’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 smaller reporting company’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 smaller reporting                  company’s                  internal control over financial                  reporting. |
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| Date:                      May 13, 2008 | By:    | /s/                      BRUCE NELSON        |        |
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|                                    |   | Bruce                      Nelson            |   |
|                                    |   | Chief                      Financial Officer |   |

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