Tenn. Code Ann. § 62-32-207: Prohibited practices

No person may:

(1) Engage in the business of servicing portable fire extinguishers without a current certificate of registration;

(2) Engage in the business of installing or servicing fixed fire extinguisher systems without a current certificate of registration;

(3) Service portable fire extinguishers or service or install fixed fire extinguisher systems without a current license;

(4) Perform hydrostatic testing of portable fire extinguishers without a valid authorization to do such work;

(5) Obtain or attempt to obtain a certificate of registration or license by fraudulent representation;

(6) Service portable fire extinguishers or service or install fixed fire extinguisher systems contrary to this part or the rules and regulations formulated and administered under the authority of this part;

(7) Service or perform hydrostatic testing of a fire extinguisher that does not have a label of approval of a testing laboratory approved by the department;

(8) Sell, service or recharge a carbon tetrachloride fire extinguisher; or

(9) Sell, rent or lease a portable fire extinguisher that has not been approved as provided by § 62-32-205(a) .