; (6) in the 2016 Drinking Water Action Plan of the Environmental Protection Agency, the Administrator recommended that the Federal Government and key water stakeholders strengthen the effectiveness of drinking water health advisories through enhanced collaboration and increased focus on risk management and risk communication approaches; (7) in response to the report of the Committee on Appropriations of the Senate accompanying S. 1662 of the 115th Congress (S. Rept. 115–139), the Office of Science and Technology Policy developed a coordinated cross-agency plan for addressing critical research gaps related to detecting, assessing exposure to, and identifying the adverse health effects of emerging contaminants in drinking water; and (8) it is vital that legislators, regulatory officials, public water system owners and operators, scientists, and environmental advocacy groups continue to work to ensure that the public water systems of the United States are among the safest in the world. 3. Definitions In this Act: (1) Administrator The term Administrator means the Administrator of the Environmental Protection Agency. (2) Contaminant The term contaminant means any physical, chemical, biological, or radiological substance or matter in water. (3) Contaminant of emerging concern; emerging contaminant The terms contaminant of emerging concern and emerging contaminant mean a contaminant— (A) for which the Administrator has not promulgated a national primary drinking water regulation; and (B) that may have an adverse effect on the health of individuals. (4) Federal research strategy The term Federal research strategy means the cross-agency plan described in section 2(7). (5) Technical assistance and support The term technical assistance and support includes— (A) assistance with— (i) identifying appropriate analytical methods for the detection of contaminants; (ii) understanding the strengths and limitations of the analytical methods described in clause (i)