describing additional areas in which data from low-cost air 
quality systems may be relevant or useful for decision-
making or for the purpose of increasing public access to 
information. 
(e) AUTHORIZATION OF APPROPRIATIONS.—There is 
authorized to be appropriated to carry out this section 
$6,000,000 for fiscal year 2026. 
SEC. 7. HAZARDOUS AIR POLLUTANT MONITORING. 
(a) IN GENERAL.—Not later than 2 years after the 
date of enactment of this Act, for the purposes of improv-
ing the quality of the national emissions inventory and ad-
vancing public access to information, the Administrator 
shall, after public notice and a public comment period of 
not less than 60 days, amend subpart A of part 51 of 
title 40, Code of Federal Regulations, to update and ex-
pand the requirements under that subpart to require all 
major and non-major sources to report additional emis-
sions data, including emissions of hazardous air pollut-
ants, perfluoroalkyl substances, and polyfluoroalkyl sub-
stances. 
(b) MINIMUM REQUIREMENTS.—The amendment re-
quired under subsection (a) shall, at a minimum— 
(1) contain all amendments described in the 
proposed rule of the Environmental Protection 
Agency entitled ‘‘Revisions to the Air Emissions Re-
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porting Requirements’’ (88 Fed. Reg. 54118 (Au-
gust 9, 2023)); 
(2) ensure reporting of emissions during periods 
of malfunction of the source; and 
(3) consistent with the proposal to require re-
porting of emissions of perfluoroalkyl substances and 
polyfluoroalkyl substances in the rule described in 
paragraph (1), require, in the reporting cycle imme-
diately following the date on which a pollutant is 
listed as a hazardous air pollutant, the reporting of 
emissions of that pollutant. 
(c) EFFECTIVE DATE.—The amendment required 
under subsection (a) shall take effect for the first inven-
tory year that begins after that amendment is finalized. 
SEC. 8. DATA REQUIREMENT. 
To the extent practicable, the Administrator shall— 
(1)(A) 
restore 
for 
public 
access 
the 
EJSCREEN mapping tool of the Environmental 
Protection Agency; or 
(B) create a relevant, nationwide geospatial 
mapping and screening tool similar to and providing, 
at minimum, all of the data previously included in 
the EJSCREEN mapping tool that the Adminis-
trator, acting through the Assistant Administrator 
for Research and Development, shall make available 
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online for public comment not later than 270 days 
after the date of enactment of this Act; and 
(2) integrate into the applicable tool restored or 
created under paragraph (1) the data collected 
through the programs established under this Act. 
SEC. 9. RULE OF CONSTRUCTION. 
Nothing in this Act amends any other statute or re-
vises or alters any duty or authority of the Administrator 
under any other applicable law. 
Æ 
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