Tennessee Code Title 8. Public Officers and Employees § 8-36-202

Any eligible member may retire on a service retirement allowance subsequent to receipt by the board of trustees of an application filed by the member through such medium as shall be prescribed by the state treasurer. At such time designated by the state treasurer, the retirement system may require the use of an electronic medium for the submission of service retirement applications. The director of the retirement system may waive the requirement to submit such application by electronic means for any member who demonstrates in writing that compliance would cause undue hardship to the member as determined by the director of the retirement system.