Conn. Gen. Stat. § 14-81b: Restrictions on used brake drums and brake discs.

The term “brake drum”, as used in this section, means the individual cupped metal drums to which motor vehicle wheels are each attached and against whose interior surface, brake shoe pressure is applied to effect stopping, holding or control of forward or backward vehicle movement. The term “brake disc” as used in this section, means the parallel faced circular rotational member to which motor vehicle wheels are each attached and against whose exterior surface, brake lining pressure is applied to effect stopping, holding or control of forward or backward movement. No person, firm or corporation shall service, turn, grind, install, sell, give or offer for sale for passenger or commercial motor vehicle use any used brake drum or brake disc which exceeds wear limits established in accordance with regulations adopted by the commissioner. Any person, firm or corporation which performs or permits any violation of this section shall be subject to the penalties provided in subsection (a) of section 14-222.