§ 150.9 Designation of noise systems.
FederalRegulations
Ask Donna
How this section applies to your facts.
Title 14—Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER I—AIRPORTS > PART 150—AIRPORT NOISE COMPATIBILITY PLANNING > Subpart A—General Provisions
Text
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 (LA) 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.
This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.