Exhibit 31.1



CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002



I, Richard V. Priddy, certify that:



1. I have reviewed this Quarterly Report of TVI Corporation (the Registrant) on
Form 10-Q for the quarterly period ended June 30, 2005;



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;



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;



4. The Registrant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)) for the Registrant and have:



(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 Registrant, including its consolidated subsidiary, is made known to us by others within those entities, particularly during the period in which this report is being prepared;



(b) [omitted]



(c) Disclosed in this report any change in the Registrants internal control over financial reporting that occurred
during the Registrants most recent fiscal quarter (the Registrants fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrants internal control
over financial reporting; and



(d) Disclosed in this report any
change in the registrants internal control over financial reporting that occurred during the registrants most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrants
internal control over financial reporting; and



5. The Registrants other
certifying officer(s) 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):



(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



(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.



|                       |  |                                      
|---------------------- |  | -------------------------------------
|Dated: August 15, 2005 |  | /s/ RICHARD V. PRIDDY                
|                       |  | Richard V. Priddy                    
|                       |  | President and Chief Executive Officer