29.1.1 Purpose. The purpose of these provisions is to establish regulations to maintain, within single family and multi-family structures and within structures designed for transient habitation, low exposure levels to noise associated with airports and major roads. (Former Section CZ#A314-60(A))

29.1.2 Applicability. The Noise Impact Regulations shall apply to lands designated “N” on the Zoning Maps that are located within areas mapped by the General Plan to have a noise exposure level of equal to or in excess of 60 dB Community Noise Equivalent Level – Day-Night Average Level (CNEL-Ldn). (Former Section CZ#A314-60(B))

29.1.3 Modifications Imposed by the Noise Impact Regulations. The provisions of the Noise Impact Regulations shall apply in addition to regulations imposed by the principal zone, development regulations, and other special area combining regulations. (Former Section CZ#A314-60(C))

29.1.4 Prohibited Development. Within areas above the 60 dB CNEL-Ldn level, placement of manufactured homes is prohibited. (Former Section CZ#A314-60(D))

29.1.5 Building Standards to Reduce Interior Noise Levels Required. Building standards to reduce interior noise levels are required to limit noise levels to 45 dB CNEL-Ldn in all habitable rooms. New construction of single family and multi-family structures and structures designed for transient habitation shall conform to the applicable requirements of the Humboldt County Building Code. (Former Section CZ#A314-60(E))