**EXHIBIT 31.1**

**SECTION 302 CERTIFICATION**

 

I, James R. Swartwout, certify that:

 

1.                                       Ihave reviewed this Quarterly Report on Form 10-Q of Summa Industries;

 

2.                                       Basedon my knowledge, this Quarterly Report does not contain any untrue statement ofa material fact or omit to state a material fact necessary to make thestatements made, in light of the circumstances under which such statements weremade, not misleading with respect to the period covered by this QuarterlyReport;

 

3.                                       Basedon my knowledge, the financial statements, and other financial informationincluded in this Report, fairly present in all material respects the financialcondition, results of operations and cash flows of the registrant as of, andfor, the periods presented in this Quarterly Report;

 

4.                                       Theregistrant’s other certifying officers and I are responsible for establishingand maintaining disclosure controls and procedures (as defined in Exchange ActRules 13a-15(e) and 15d-15(e)), for the registrant and we have:

 

(a)                                  designedsuch disclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervision, to ensure that materialinformation relating to the registrant, including its consolidatedsubsidiaries, is made known to us by others within those entities, particularlyduring the period in which this Quarterly Report is being prepared;

 

(b)                                 evaluatedthe effectiveness of the registrant’s disclosure controls and procedures andpresented in this Quarterly Report our conclusions about the effectiveness ofthe disclosure controls and procedures as of the end of the period covered bythis report based on such evaluation; and

 

(c)                                  Disclosedin this Quarterly Report any change in the registrant’s internal control overfinancial reporting that occurred during the registrant’s most recent fiscalquarter (the registrant’s fourth fiscal quarter in the case of an annualreport) that has materially affected, or is reasonably likely to materiallyaffect, the registrant’s internal control over financial reporting; and

 

5.                                       Theregistrant’s other certifying officers and I have disclosed, based on our mostrecent evaluation of internal control over financial reporting, to theregistrant’s auditors and the audit committee of registrant’s board ofdirectors (or persons performing the equivalent functions):

 

(a)                                  allsignificant deficiencies in the design or operation of internal controls overfinancial reporting which are reasonably likely to adversely affect theregistrant’s ability to record, process, summarize and report financialinformation; and

 

(b)                                 anyfraud, whether or not material, that involves management or other employees whohave a significant role in the registrant’s internal control over financialreporting.

 

 
|   |    /s/ James R. Swartwout |   |   |
|--------|------------------------------------------|--------|--------|
|   | James R. Swartwout                       |   |
|   | Chief Executive Officer                  |   |
|   | Chief Financial Officer                  |   |
|   | April 6, 2006                            |   |

 

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