# Update of Continuous Instrumental Test Methods
> **Rule** · Final rule. · Published 2006-05-15 · Effective 2006-08-14 · 71 FR 28082
## Document
- **Document number:** 06-4196
- **Category:** other
- **Federal Register citation:** 71 FR 28082
- **CFR reference:** 40 CFR 60
- **Publication date:** 2006-05-15
- **Effective date:** 2006-08-14
- **EPA docket:** EPA-OAR-2002-0071
## Abstract

On October 10, 2003, the EPA proposed amendments to update five instrumental test methods that are used to measure air pollutant emissions from stationary sources. These amendments are finalized in this document and reflect changes to the proposal to accommodate the public comments. This action is made to improve the methods by simplifying, harmonizing, and updating their procedures. A large number of industries are already subject to provisions that require the use of these methods. Some of the affected industries and their North American Industrial Classification System (NAICS) are listed under SUPPLEMENTARY INFORMATION.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/05/15/06-4196/update-of-continuous-instrumental-test-methods)
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