2025 Emission Inventory
The New Mexico State Environment Department’s Air Quality Bureau (the Bureau) is conducting air Emissions Inventory, excluding facilities in Bernalillo County and on Tribal Lands. This inventory applies to all major and non-major sources with air quality construction permits (20.2.72 NMAC or 20.2.74 NMAC) or operating permits (20.2.70 NMAC), including General Construction Permits (GCP) and sources with Notices of Intent (NOI) (20.2.73.200 NMAC) that meet the requirements in 20.2.73.300.C NMAC listed below.
- Any source which emits, or has the potential to emit, 5 tons per year or more of lead or lead compounds, or 100 tons per year or more of PM10, PM2.5, sulfur oxides, nitrogen oxides, carbon monoxide, or volatile organic compounds shall submit an emissions report annually.
- Any source defined as a major source of hazardous air pollutants under 20.2.70 NMAC (Operating Permits) shall submit an emissions report annually.
Actual annual emissions of pollutants in the year 2025 can be reported to the Bureau starting January 1 of 2026 and are due by April 1 of 2026. Actual emissions are required to be submitted using the online reporting tool, AEIR, provided by the Bureau. The Emission Inventory information can be found in the 2025 Emission Inventory Frequently Asked Questions (FAQ).
Interactive Training
2025 Emissions Inventory Training Session will be conducted on February 19, 2026 from 1:00 PM to 2:00 PM Mountain Standard Time as a Microsoft Teams meeting.
The link to the training session will be sent to you through a NMED Emissions Inventory Bulletin.
Instructions to Access AEIR
- AEIR access portal is the website that connects users to the AEIR emission inventory program.
Greenhouse Gas Reporting Instructions for Emission Inventory
- Greenhouse Gas (GHG) Reporting Instructions describe requirements and methods for reporting greenhouse gases for your facility or organization. GHGs are reported separately from other pollutants. PDF or video (6:22)
Emission Inventory Calculation Methods
- Calcatenate is a MS Access program that calculates emissions of equipment. This program can import and export xml files to submit to AEIR.
- AECT is a tool in Adobe Acrobat that calculates emissions
Instructions to Complete Emission Inventory
Emission inventory may be submitted to AEIR by manually entering information or by uploading a specially formatted XML file.
NOTE: If using xml to submit emissions, there has been a schema change for 2025 submittals. The “Industry Segment” choices have changed.
- Emissions Inventory Guidance Document (updated January 10, 2026) provides instructions to use AEIR to submit the emission inventory.
- Emission Inventory General Overview – PDF
- Create a New Submittal in AEIR – PDF or video (7 min 53 sec)
- Manually Add Equipment to an AEIR Submittal – PDF or video (20 min)
- Introduction to XML submittal – video (9 min 39 sec)
Instructions to Certify Completed Inventory
Once the inventory has been completely filled out or uploaded, follow instructions below to certify the submission.
- Become an approved certifier for your facility with E-Sign – website, PDF overview
- How to Certify a Submittal in AEIR video (5 min 27 sec)
Emission Inventory Guidance Documents Related to Construction Industries
- Aggregate Facility Instructions – GCP-2 Permits
- Asphalt Plant Instructions – GCP-3 Permits
- Concrete Plant Instructions – GCP-5 Permits
Industrial Codes (NAICS and SCC)
- Source Classification Codes are used by EPA to classify different types of activities that generate emissions.
- North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.