NOISE ATTENUATION. All residential structures located within the 55dB CNEL or larger contours shall comply with Title 25 of the California Administrative Code to at- tenuate exterior noise such that interior noise levels shall not exceed 45dB CNEL in any habitable room. Enlargements and additions to a dwelling unit in existence on the effective date of these regulations shall only be subject to the noise attenuation standards of this Subsection for that portion of the structure that is to be enlarged or added to the existing structure.
Appears in 2 contracts
Sources: Zoning Ordinance, Zoning Ordinance
NOISE ATTENUATION. All residential structures located within the 55dB CNEL or larger contours shall comply with Title 25 of the California Administrative Code to at- tenuate attenuate exterior noise such that interior noise levels shall not exceed 45dB CNEL in any habitable room. Enlargements and additions to a dwelling unit in existence on the t he effective date of these regulations shall only be subject to the noise attenuation standards of this Subsection for that portion of the structure that is to be enlarged or added to the existing structure.
Appears in 1 contract
Sources: Zoning Ordinance