# Calculation of Noise Levels Published in Advisory Circular 36-3
> **Rule** · Statement of policy. · Published 2009-06-08 · 74 FR 27076
## Document
- **Document number:** E9-13333
- **Category:** other
- **Type:** Rule
- **Action:** Statement of policy.
- **Citation:** 74 FR 27076
- **Publication date:** 2009-06-08
## Abstract

This action clarifies the Federal Aviation Administration's (FAA) policy on the calculation of derived noise levels submitted for publication in Advisory Circular (AC) 36-3, Estimated Airplane Noise Levels in A-Weighted Decibels. This action is intended to provide guidance on calculating the derived levels used in that publication.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/06/08/E9-13333/calculation-of-noise-levels-published-in-advisory-circular-36-3)
---
*AI Analytics · CC0 1.0*