# 401 KAR 50:040: 401 KAR 50:040. Air quality models

> Kentucky · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R040

## Section

- **Citation:** 401 KAR 50:040
- **Heading:** 401 KAR 50:040. Air quality models
- **Jurisdiction:** Kentucky
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Kentucky Administrative Regulations / Title 401 (Energy and Environment Cabinet - Department for Environmental Protection) / Chapter 050 / 401 KAR 50:040

## Text

Section 1. Air Quality Models. (1) All estimates of ambient concentrations required under the administrative regulations of the Division for Air Quality shall be based on the applicable air quality models, data bases, and other requirements specified in the "Guidelines on Air Quality Models" (OAQPS 1.2-080, U. S. EPA, Office of Air Quality Planning and Standards), filed by reference in 401 KAR 50:015. (2) Where an air quality impact model specified in the "Guideline on Air Quality Models" is inappropriate, the model may be modified or another model substituted subject to the approval of the cabinet. (3) Methods like those outlined in the "Workbook for the Comparison of Air Quality Models" (OAQPS No. 1.2-097, U. S. EPA, Office of Air Quality Planning and Standards), filed by reference in 401 KAR 50:015, shall be used to determine the comparability of air quality models.

## Nearby sections

- [401 KAR 50:005 401 KAR 50:005. General application](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R005.md)
- [401 KAR 50:010 401 KAR 50:010. Definitions for 401 KAR Chapter 50](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R010.md)
- [401 KAR 50:012 401 KAR 50:012. General application](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R012.md)
- [401 KAR 50:015 401 KAR 50:015. Documents incorporated by reference](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R015.md)
- [401 KAR 50:020 401 KAR 50:020. Air quality control regions](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R020.md)
- [401 KAR 50:025 401 KAR 50:025. Classification of counties](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R025.md)
- [401 KAR 50:038 401 KAR 50:038. Air emissions fee](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R038.md)
- [401 KAR 50:040 401 KAR 50:040. Air quality models](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R040.md)
- [401 KAR 50:042 401 KAR 50:042. Good engineering practice stack height](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R042.md)
- [401 KAR 50:045 401 KAR 50:045. Performance tests](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R045.md)
- [401 KAR 50:047 401 KAR 50:047. Test procedures for capture efficiency](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R047.md)
- [401 KAR 50:050 401 KAR 50:050. Monitoring](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R050.md)
- [401 KAR 50:055 401 KAR 50:055. General compliance requirements](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R055.md)
- [401 KAR 50:060 401 KAR 50:060. Enforcement](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R060.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C050_R040. Check the current official text before relying on it. Not legal advice.