Certifications - -------------- I, Charles E. Porter, a principal financial officer of the funds listed on Attachment A, certify that: 1. I have reviewed each report on Form N-CSR of the funds listed on Attachment A; 2. Based on my knowledge, each report does not contain any untrue statements 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 each report; 3. Based on my knowledge, the financial statements, and other financial information included in each report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in each report; 4. Each registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act) for the registrants 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 subsidiaries, is made known to us by others within those entities, particularly during the period in which each report are being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report (the "Evaluation Date") based on such evaluation; and 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 half-year (the registrant's second fiscal half-year 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. 5. Each registrant's other certifying officers and I have disclosed to each registrant's auditors and the audit committee of each 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 each 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 each registrant's internal controls. /s/Charles E. Porter Date: August 20, 2003 - ---------------------- --------------------- Charles E. Porter, Principal Financial Officer Certifications - -------------- I, Karnig H. Durgarian, the principal executive officer of the funds listed on Attachment A, certify that: 1. I have reviewed each report on Form N-CSR of the funds listed on Attachment A; 2. Based on my knowledge, each report does not contain any untrue statements 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 each report; 3. Based on my knowledge, the financial statements, and other financial information included in each report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in each report; 4. Each registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act) for the registrants and have: a) designed such disclosure controls and procedures to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which each report are being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report (the "Evaluation Date") based on such evaluation; and 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 half-year (the registrant's second fiscal half-year 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. 5. Each registrant's other certifying officers and I have disclosed to each registrant's auditors and the audit committee of each 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 each 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 each registrant's internal controls. /s/Karnig H. Durgarian Date: August 20, 2003 - ---------------------- --------------------- Karnig H. Durgarian, Principal Executive Officer Certifications - -------------- I, Steven D. Krichmar, a principal financial officer of the funds listed on Attachment A, certify that: 1. I have reviewed each report on Form N-CSR of the funds listed on Attachment A; 2. Based on my knowledge, each report does not contain any untrue statements 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 each report; 3. Based on my knowledge, the financial statements, and other financial information included in each report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in each report; 4. Each registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act) for the registrants and have: a) designed such disclosure controls and procedures to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which each report are being prepared; b) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report (the "Evaluation Date") based on such evaluation; and 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 half-year (the registrant's second fiscal half-year 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. 5. Each registrant's other certifying officers and I have disclosed to each registrant's auditors and the audit committee of each 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 each 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 each registrant's internal controls. /s/Steven D. Krichmar Date: August 20, 2003 - ---------------------- --------------------- Steven D. Krichmar, Principal Financial Officer Attachment A - -------------- June 30, 2003 377 Putnam Discovery Growth fund 2HF Putnam Small Cap Growth Fund 852 Putnam New Opportunities Fund 057 Putnam Europe Equity Fund 2CE Putnam International Growth & Income Fund 841 Putnam International Equity Fund 069 Putnam VT Money Market Fund 2LA Putnam VT Research Fund 066 Putnam VT Growth and Income Fund 2TJ Putnam VT Discovery Growth Fund 152 Putnam VT Utilities Growth & Income Fund 016 Putnam VT Global Equity Fund 2IS Putnam VT The George Putnam Fund of Boston 961 Putnam VT Diversified Income Fund 2MJ Putnam VT Small Cap Value Fund 2DQ Putnam VT Vista Fund 23H Putnam VT Mid Cap Value Fund (New) 23K Putnam VT Capital Opportunities Fund (New) 2DR Putnam VT New Value Fund 2PU Putnam VT Growth Opportunities Fund 068 Putnam VT Income Fund 098 Putnam VT New Opportunities Fund 065 Putnam VT Voyager Fund 070 Putnam VT Global Asset Allocation Fund 2DP Putnam VT International New Opportunities Fund 2TP Putnam VT Capital Appreciation Fund 23N Putnam VT Equity Income Fund (New) 2IO Putnam VT Investors Fund 2IP Putnam VT OTC & Emerging Growth Fund 2IW Putnam VT Health Sciences Fund 2PX Putnam VT American Government Income Fund 2DO Putnam VT International Equity Fund 2DN Putnam VT International Growth and Income Fund 067 Putnam VT High Yield Fund