34 CFR § 303.320 - Screening procedures (optional).
(a) General.
(1) The lead agency may adopt procedures, consistent with the requirements of this section, to screen children under the age of three who have been referred to the part C program to determine whether they are suspected of having a disability under this part. If the lead agency or EIS provider proposes to screen a child, it must—
(i) Provide the parent notice under § 303.421 of its intent to screen the child to identify whether the child is suspected of having a disability and include in that notice a description of the parent's right to request an evaluation under § 303.321 at any time during the screening process; and
(ii) Obtain parental consent as required in § 303.420(a)(1) before conducting the screening procedures.
(2) If the parent consents to the screening and the screening or other available information indicates that the child is—
(i) Suspected of having a disability, after notice is provided under § 303.421 and once parental consent is obtained as required in § 303.420, an evaluation and assessment of the child must be conducted under § 303.321; or
(ii) Not suspected of having a disability, the lead agency or EIS provider must ensure that notice of that determination is provided to the parent under § 303.421, and that the notice describes the parent's right to request an evaluation.
(3) If the parent of the child requests and consents to an evaluation at any time during the screening process, evaluation of the child must be conducted under § 303.321, even if the lead agency or EIS provider has determined under paragraph (a)(2)(ii) of this section that the child is not suspected of having a disability.
(b) Definition of screening procedures. Screening procedures—
(1) Means activities under paragraphs (a)(1) and (a)(2) of this section that are carried out by, or under the supervision of, the lead agency or EIS provider to identify, at the earliest possible age, infants and toddlers suspected of having a disability and in need of early intervention services; and
(2) Includes the administration of appropriate instruments by personnel trained to administer those instruments.
(c) Condition for evaluation or early intervention services. For every child under the age of three who is referred to the part C program or screened in accordance with paragraph (a) of this section, the lead agency is not required to—
(1) Provide an evaluation of the child under § 303.321 unless the child is suspected of having a disability or the parent requests an evaluation under paragraph (a)(3) of this section; or
(2) Make early intervention services available under this part to the child unless a determination is made that the child meets the definition of infant or toddler with a disability under § 303.21.