Air Emissions Reporting
Requirements (AERR) (Renewal)
Extension without change of a currently approved collection
No
Regular
10/31/2025
Requested
Previously Approved
36 Months From Approved
10/31/2025
5,931
85
198,499
48,702
15,130,399
255,000
Under the AERR ICR, 55 State and
territorial air quality agencies, including the District of
Columbia (DC), and an estimated 14 local and tribal air quality
agencies, must annually submit emissions data of oxides of nitrogen
(NOx), carbon monoxide (CO), sulfur dioxide (SO2), volatile organic
compounds (VOC), particulate matter less than or equal to 10
micrometers in diameter (PM10), particulate matter less than or
equal to 2.5 micrometers in diameter (PM2.5), and ammonia (NH3).
The current AERR rule, which can be found at 40 CFR Part 51 Subpart
A, defines which emissions sources that State, local, and Tribal
(SLT) agencies must submit individually as “point sources.” The
point source definitions are different depending on the year, and
SLTs report more point sources every third year for the “triennial
inventory.” For triennial inventory years, States must also submit
point source emissions for Lead (Pb), emissions for stationary
nonpoint and some nonroad mobile sources, and they must submit
model input data for onroad mobile and nonroad mobile equipment.
For mobile sources, California has different requirements because
it uses different models, and California must submit emissions
(rather than model inputs) for these data categories of the same
pollutants listed above. The annual emissions data collected
through the AERR are used by the EPA Office of Air Quality Planning
and Standards (OAQPS) to support development of the National
Emissions Inventory (NEI). The NEI is more comprehensive for
triennial inventory years because they include updates to all data
categories. The EPA uses the NEI in developing national ambient air
quality standards (NAAQS), performing regional and national
modeling, providing air quality management support (e.g., State
implementation plan (SIP) development) to State agencies and
multi-jurisdictional organizations (MJOs), and preparing national
trends assessments and other special analyses and reports.
Currently, the same reporting mechanisms used for the criteria air
pollutants and precursors (CAPs) listed above are also used for
voluntary reporting of hazardous air pollutants (HAP) and other
pollutants. These data are collected by the air agencies for their
own purposes, and EPA encourages air agencies to voluntarily
provide such data to EPA when it is available.
As compared to the previous ICR
for the AERR, this ICR covers more activities. First, this ICR has
been modified to include the costs of emissions data systems that
the States will likely run irrespective of this rule (to collect
permit fees). Second, this ICR includes the burden on
owners/operators for reporting data to the States so that States
can report to EPA. These additions make the ICR more complete but
are not adding real-world burden to States or owners/operators when
compared to activities they are already doing. These additions are
simply covering gaps in the previously approved AERR ICR. These
types of costs would continue to occur regardless of this rule, by
way of complying with other existing Federal and State laws and
regulations. For States, the number of respondents has been revised
downward based on the most recent inventory years where fewer local
and Tribal agencies are now reporting. The annual respondent burden
has increased because of methodological differences from the
previous ICR. For SLTs, the primary changes from the previous ICR
include: improved assessment of point source annual burden, point
source triennial burden, CAERS point source reporting burden, and
other triennial burden activities from 609 hours for States and 333
for local agencies to 670 hours for States and 178 hours for local
agencies. Despite overall increases in hours per respondent, the
decrease in respondents and the expected change in agencies using
CAERS results in very little change in burden for SLTs. The large
increase in costs can be attributed to the newly included costs of
data system operation and maintenance of about $15M.
$5,367,800
No
No
No
No
No
No
No
Marc Houyoux 919 541-3649
houyoux.marc@epa.gov
No
On behalf of this Federal agency, I certify that
the collection of information encompassed by this request complies
with 5 CFR 1320.9 and the related provisions of 5 CFR
1320.8(b)(3).
The following is a summary of the topics, regarding
the proposed collection of information, that the certification
covers:
(i) Why the information is being collected;
(ii) Use of information;
(iii) Burden estimate;
(iv) Nature of response (voluntary, required for a
benefit, or mandatory);
(v) Nature and extent of confidentiality; and
(vi) Need to display currently valid OMB control
number;
If you are unable to certify compliance with any of
these provisions, identify the item by leaving the box unchecked
and explain the reason in the Supporting Statement.