---
kind: "section"
citation: "42 U.S.C. § 7620"
title: "42"
title_heading: "The Public Health and Welfare"
number: "7620"
heading: "Standardized air quality modeling"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/7620"
units:
  - "Chapter 85 — Air Pollution Prevention and Control"
  - "Subchapter III — General Provisions"
---

# §7620. Standardized air quality modeling

- (a) **Conferences—** Not later than six months after August 7, 1977, and at least every three years thereafter, the [Administrator](/usc/42/7602.md?p=a) shall conduct a conference on air quality modeling. In conducting such conference, special attention shall be given to appropriate modeling necessary for carrying out part C of subchapter I (relating to prevention of significant deterioration of air quality).
- (b) **Conferees—** The conference conducted under this section shall provide for participation by the National Academy of Sciences, representatives of [State](/usc/42/7602.md?p=d) and local [air pollution control agencies](/usc/42/7602.md?p=b), and appropriate Federal [agencies](/usc/42/8262.md?p=1), including the National Science Foundation;[^1] the National Oceanic and Atmospheric Administration, and the National Institute of Standards and Technology.
- (c) **Comments; transcripts—** Interested [persons](/usc/42/7602.md?p=e) shall be permitted to submit written comments and a verbatim transcript of the conference proceedings shall be maintained.
- (d) **Promulgation and revision of regulations relating to air quality modeling—** The comments submitted and the transcript maintained pursuant to [subsection (c)](#c) shall be included in the docket required to be established for purposes of promulgating or revising any regulation relating to air quality modeling under part C of subchapter I.

## Footnotes

[^1]: So in original. The semicolon probably should be a comma.

## Source credit

(July 14, 1955, ch. 360, title III, § 320, as added Pub. L. 95–95, title III, § 310, Aug. 7, 1977, 91 Stat. 782; amended Pub. L. 100–418, title V, § 5115(c), Aug. 23, 1988, 102 Stat. 1433.)

## Notes

### Editorial Notes

### Amendments

1988—Subsec. (b). Pub. L. 100–418 substituted “National Institute of Standards and Technology” for “National Bureau of Standards”.

### 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.