§ 150.9 - Designation of noise systems.

Latest Version
Updated Versions
- Thursday, January 1, 1998
- Wednesday, January 1, 1997
Related Notices
- 04-21298. Final rule; request for comments. 04-21298. Airport Noise Compatibility Planning
- 96-23579. Policy statement. 96-23579. Policy on Funding of Combined Part 150 and Part 161 Studies and Analyses

Latest version.

§ 150.9 Designation of noise systems.

For purposes of this part, the following designations apply:

(a) The noise at an airport and surrounding areas covered by a noise exposure map must be measured in A-weighted sound pressure level (L_A) in units of decibels (dBA) in accordance with the specifications and methods prescribed under appendix A of this part.

(b) The exposure of individuals to noise resulting from the operation of an airport must be established in terms of yearly day-night average sound level (YDNL) calculated in accordance with the specifications and methods prescribed under appendix A of this part.

(c) Uses of computer models to create noise contours must be in accordance with the criteria prescribed under appendix A of this part.

                    
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§ 150.9 - Designation of noise systems.

§ 150.9 Designation of noise systems.