Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-135-103

(1) The applicant, or in the case of a firm or corporation, the person charged with the active management of the firm or corporation, must be twenty-one (21) years of age, and must submit evidence of at least three (3) years of experience in the liquified petroleum gas business or, alternatively, evidence of attendance at safety and handling training classes designed and established by the National Propane Gas Association;

(2) The applicant must file evidence of financial responsibility in the form of a certificate of liability insurance coverage in minimum limits of five hundred thousand dollars ($500,000) in the case of injury to any one (1) person and one million dollars ($1,000,000) in the case of any one (1) accident, or by the execution and filing of a bond for a like amount or by the deposit of one million dollars ($1,000,000) cash with the state fire marshal;

(3) The applicant shall also file evidence that the applicant is able to comply with such reasonable minimum storage requirements as the state fire marshal by regulation may from time to time determine to be necessary in the interest of public safety or welfare;

(4) The applicant must be of good character; and

(5) The applicant, or in the case of a firm or corporation, the person charged with the active management of the firm or corporation, shall be examined for the purpose of determining whether such applicant or representative has adequate knowledge of regulations promulgated by the state fire marshal; provided, that the state fire marshal may also require that any other person, employee or representative directly engaging in the delivering, installing or servicing of liquefied petroleum gas or liquefied petroleum gas equipment and appliances be likewise examined, and the state fire marshal shall prescribe such reasonable rules and regulations as the state fire marshal may deem necessary to safeguard life, health and property that will require as a prerequisite to issuance of a license, evidence of a completed, approved department of transportation inspection on all standard bob-tailed vehicles.