Title 42The Public Health and WelfareRelease 119-73

§7422 Listing of certain unregulated pollutants

Title 42 › Chapter CHAPTER 85— - AIR POLLUTION PREVENTION AND CONTROL › Subchapter SUBCHAPTER I— - PROGRAMS AND ACTIVITIES › Part Part A— - Air Quality and Emission Limitations › § 7422

Last updated Apr 6, 2026|Official source

Summary

EPA must, no later than one year after August 7, 1977 (two years for radioactive pollutants), and after giving notice and holding a public hearing, look at the available facts and decide if emissions of radioactive pollutants (including source material, special nuclear material, and byproduct material), cadmium, arsenic, and polycyclic organic matter are likely to cause or add to air pollution that could endanger public health. If EPA finds a risk, it must add the substance to its list of harmful air pollutants or list the kinds of stationary sources that emit it, or do both. EPA can still change these lists later. Before listing any nuclear material, EPA must talk with the Nuclear Regulatory Commission. Within six months after such a listing, EPA and the Commission must make an agreement to avoid duplicating work and to save administrative resources when making and enforcing rules for facilities the Commission controls. If the Commission finds, after notice and a hearing, that applying a rule to a facility it regulates would endanger public health or safety, that rule will not apply to those facilities unless the President decides otherwise within 90 days of the Commission’s finding.

Full Legal Text

Title 42, §7422

The Public Health and Welfare — Source: USLM XML via OLRC

(a)Not later than one year after August 7, 1977 (two years for radioactive pollutants) and after notice and opportunity for public hearing, the Administrator shall review all available relevant information and determine whether or not emissions of radioactive pollutants (including source material, special nuclear material, and byproduct material), cadmium, arsenic and polycyclic organic matter into the ambient air will cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health. If the Administrator makes an affirmative determination with respect to any such substance, he shall simultaneously with such determination include such substance in the list published under section 7408(a)(1) or 7412(b)(1)(A) 11 See References in Text note below. of this title (in the case of a substance which, in the judgment of the Administrator, causes, or contributes to, air pollution which may reasonably be anticipated to result in an increase in mortality or an increase in serious irreversible, or incapacitating reversible, illness), or shall include each category of stationary sources emitting such substance in significant amounts in the list published under section 7411(b)(1)(A) of this title, or take any combination of such actions.
(b)Nothing in subsection (a) shall be construed to affect the authority of the Administrator to revise any list referred to in subsection (a) with respect to any substance (whether or not enumerated in subsection (a)).
(c)(1)Before listing any source material, special nuclear, 22 So in original. The word “material” probably should precede the comma. or byproduct material (or component or derivative thereof) as provided in subsection (a), the Administrator shall consult with the Nuclear Regulatory Commission.
(2)Not later than six months after listing any such material (or component or derivative thereof) the Administrator and the Nuclear Regulatory Commission shall enter into an interagency agreement with respect to those sources or facilities which are under the jurisdiction of the Commission. This agreement shall, to the maximum extent practicable consistent with this chapter, minimize duplication of effort and conserve administrative resources in the establishment, implementation, and enforcement of emission limitations, standards of performance, and other requirements and authorities (substantive and procedural) under this chapter respecting the emission of such material (or component or derivative thereof) from such sources or facilities.
(3)In case of any standard or emission limitation promulgated by the Administrator, under this chapter or by any State (or the Administrator) under any applicable implementation plan under this chapter, if the Nuclear Regulatory Commission determines, after notice and opportunity for public hearing that the application of such standard or limitation to a source or facility within the jurisdiction of the Commission would endanger public health or safety, such standard or limitation shall not apply to such facilities or sources unless the President determines otherwise within ninety days from the date of such finding.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

section 7412(b)(1), referred to in subsec. (a), was amended generally by Pub. L. 101–549, title III, § 301, Nov. 15, 1990, 104 Stat. 2531, and, as so amended, no longer contains a subpar. (A).

Statutory Notes and Related Subsidiaries

Effective Date

Section effective Aug. 7, 1977, except as otherwise expressly provided, see section 406(d) of Pub. L. 95–95, set out as an

Effective Date

of 1977 Amendment note under section 7401 of this title. Study by Administrator of Environmental Protection Agency Pub. L. 95–95, title I, § 120(b), Aug. 7, 1977, 91 Stat. 721, directed Administrator of Environmental Protection Agency to conduct a study, in conjunction with other appropriate agencies, concerning effect on public health and welfare of sulfates, radioactive pollutants, cadmium, arsenic, and polycyclic organic matter which are present or may reasonably be anticipated to occur in the ambient air, such study to include a thorough investigation of how sulfates are formed and how to protect public health and welfare from the injurious effects, if any, of sulfates, cadmium, arsenic, and polycyclic organic matter.

Executive Documents

Transfer of Functions

For transfer of certain functions from Nuclear Regulatory Commission to Chairman thereof, see Reorg. Plan No. 1 of 1980, 45 F.R. 40561, 94 Stat. 3585, set out as a note under section 5841 of this title.

Reference

Citations & Metadata

Citation

42 U.S.C. § 7422

Title 42The Public Health and Welfare

Last Updated

Apr 6, 2026

Release point: 119-73