Tennessee Code Title 4. State Government § 4-55-107

(a) Notwithstanding a law to the contrary, both the registry of election finance and the Tennessee ethics commission may require all individuals and organizations required to file a report or statement with the registry or commission to provide a valid email address, wherever available, that may be relied upon and used as the preferred method of providing notice pursuant to all provisions of law within the jurisdiction of the registry or commission, as applicable, in accordance with § 4-55-105.

(b) Notwithstanding a law to the contrary, when an email address is not available, both the registry and the commission may utilize first-class mail to provide notice pursuant to all provisions of law within the jurisdiction of the registry or commission, as applicable, in accordance with § 4-55-105.

(c) Notice is deemed to have been appropriately delivered and received, absent evidence to the contrary, on the fifth calendar day following the date of electronic delivery or the date of the postmark if delivered by mail, as applicable.

(d) Each filer shall ensure that the filer's designated email address, where available, and mailing address is updated and correct whenever a change to such occurs.

(e) The registry and commission shall advise persons and organizations registering with the registry or commission, on the forms provided to such registrants or by letter to existing registrants as of December 31, 2023, that the person or organization will be provided notice by email, or first-class mail if email is unavailable, at the email and mail addresses provided by the registrant. This information must be stated in bold and all caps on the registration forms and the letter developed by the registry or ethics commission and must also be published on the website of the registry and commission, respectively.