Attached files

file filename
EX-95 - EX-95 - TETRA TECH INCttekex95q22020.htm
EX-32.2 - EX-32.2 - TETRA TECH INCttekex322q22020.htm
EX-31.2 - EX-31.2 - TETRA TECH INCttekex312q22020.htm
EX-31.1 - EX-31.1 - TETRA TECH INCttekex311q22020.htm
EX-10 - EX-10 - TETRA TECH INCttekex10q22020.htm
10-Q - 10-Q - TETRA TECH INCttek-20200329.htm

Exhibit 32.1
 
Certification of Chief Executive Officer Pursuant to
Section 1350
 
In connection with the Quarterly Report of Tetra Tech, Inc. (the “Company”) on Form 10-Q for the quarterly period ended March 29, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dan L. Batrack, Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:
 
1.The Report fully complies with requirements of Section 13(a) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
 
/s/ Dan L. Batrack 
Dan L. Batrack 
Chairman, Chief Executive Officer and President 
May 1, 2020 
 
A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Tetra Tech, Inc. and will be retained by Tetra Tech, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.
 
The foregoing certification is being furnished to the Securities and Exchange Commission as an exhibit to the Form 10-Q and shall not be considered filed as part of the Form 10-Q.