Tennessee Code Title 49. Education § 49-10-108

(a) Every LEA shall identify, locate, and evaluate all children with disabilities, or who are suspected of having a disability, within its boundaries, ages three (3) through twenty-one (21), both inclusive, who need special education and related services, including all children with disabilities who are enrolled by their parents in private schools located within the boundaries of the LEA.

(b) A parent or legal guardian may request the LEA to conduct a full and individualized evaluation of the parent's or legal guardian's child to determine if the child has a disability and is eligible for special education services.

(c) The identification, location, and evaluation of children with disabilities must be conducted in accordance with the IDEA, the state's special education laws, and the state board of education's rules.