Maryland Code, Environment § 8-305

(a)(1) In this section the following words have the meanings indicated.

(2) “Listed facility” means a radon testing facility that is listed in the report of the latest round of the United States Environmental Protection Agency's National Radon Measurement Proficiency Program.

(1) After completion of round 6 of the United States Environmental Protection Agency's National Radon Measurement Proficiency Program, have all tests analyzed by a listed facility;

(2) Indicate the name of the facility conducting the analysis on the radon testing device; and

(3) Disclose in writing to the ultimate consumer the results of the radon test and the name and address of the facility that analyzed the test.

(1) May adopt regulations to require radon testing facilities to send test results to the Department; and

(2) May not disclose, in response to a request from the public for the name of a radon testing facility, the name of a radon tester that is not a listed facility.