assess the incidence of thyroid disease and measurable effects of thyroid function in relation to exposure to perchlorate;

ensure that the study is of sufficient scope and scale to permit the making of meaningful conclusions of the measurable public health threat associated with exposure to perchlorate, especially the threat to sensitive subpopulations; and

examine thyroid function, including measurements of urinary iodine and thyroid hormone levels, in a sufficient number of pregnant women, neonates, and infants exposed to perchlorate in drinking water and match measurements of perchlorate levels in the drinking water of each study participant in order to permit the development of meaningful conclusions on the public health threat to individuals exposed to perchlorate.

available data on human exposure to perchlorate, including clinical data and data on exposure of sensitive subpopulations, and the levels at which health effects were observed; and

available data on other substances that have endocrine effects similar to perchlorate to which the public is frequently exposed.

The Secretary shall provide for the performance of the study under subsection (a) through the Centers for Disease Control and Prevention, the National Institutes of Health, or another Federal entity with experience in environmental toxicology selected by the Secretary.

The Secretary shall provide for the performance of the review under subsection (b) through the Centers for Disease Control and Prevention, the National Institutes of Health, or another appropriate Federal research entity with experience in human endocrinology selected by the Secretary. The Secretary shall ensure that the panel conducting the review is composed of individuals with expertise in human endocrinology.