(a) On or before July 1, 2020, the Department shall adopt regulations for conducting environmental investigations to determine lead hazards for:
(1) Children under the age of 6 years with elevated blood lead levels greater than or equal to the reference level defined in § 6–801(q) of this title; and
(2) Pregnant women with elevated blood lead levels greater than or equal to the reference level as defined in § 6–801(q) of this title.
(b) (1) The regulations adopted under subsection (a) of this section shall be consistent with, or more stringent than, the Guidelines for the Evaluation and Control of Lead–Based Paint Hazards in Housing published by the U.S. Department of Housing and Urban Development.
(2) The regulations adopted under subsection (a) of this section shall provide for an environmental investigation to be completed after receipt by the Department or the county board of health of the results of a blood test under § 6–304 of this subtitle for:
(i) Children under the age of 6 years with elevated blood lead levels greater than or equal to the reference level defined in § 6–801(q) of this title; or
(ii) Pregnant women with elevated blood lead levels greater than or equal to the reference level defined in § 6–801(q) of this title.
(c) The Department shall include in its annual report on statewide childhood blood lead testing a summary of the results of any environmental investigation conducted in accordance with this section.