Maryland Code, Environment § 6-846

(1) Before February 24, 2006, 15 μg/dl;

(2) Between February 24, 2006, and September 30, 2019, inclusive, 10 μg/dl;

(3) Between October 1, 2019, and October 27, 2022, inclusive, 5 μg/dl;

(4) Between October 28, 2022, and December 31, 2023, inclusive, 3.5 μg/dl; and

(5) On and after January 1, 2024, the reference level.

(1) The person at risk, or in the case of a minor, the parent or legal guardian of the person at risk, of the results of the test; and

(2) The owner of the affected property in which the person at risk resides or regularly spends at least 24 hours per week of the results of the test.