1206.8 Compliance.

1206.8 Compliance.

(a) Evidence of compliance with Section 1206.7 shall consist of submittal of an acoustical analysis report, prepared under the supervision of a person experienced in the field of acoustical engineering, with the application for a building permit. The report shall show topographical relationships of noise sources and dwelling sites, identification of noise sources and their characteristics, predicted noise spectra and levels at the exterior of the proposed dwelling structure considering present and future land usage, the basis or bases for the prediction (measured or obtained from published data), noise attenuation measures to be applied and an analysis of the noise insulation effectiveness of the proposed construction showing that the prescribed interior noise level requirements are met.

(b) If interior allowable noise levels are met by requiring that windows be unopenable or closed the design for the structure must also specify a ventilation or air-conditioning system to provide a habitable interior environment. The ventilation system must not compromise the dwelling unit or guest room noise reduction.