Seattle Municipal Code Table of Contents
Title 25 ENVIRONMENTAL PROTECTION AND HISTORIC PRESERVATION*
Chapter 25.08 NOISE CONTROL*
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Statutory Reference: For statutory provisions on noise control, see RCW Ch. 70.107.
Severability: Should any section, subsection, paragraph, sentence, clause or phrase of this chapter or its application to any person or situation be declared unconstitutional or invalid for any reason, such decision shall not affect the validity of the remaining portions of this chapter or its application to any other person or situation. (Ord. 106360 Section 1002, 1977.)
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Chapter 25.08 Noise Control
Subchapter I General Provisions
25.08.010. Declaration of policy.
25.08.020. Findings of special conditions.
25.08.030. Chapter additional to other law.
Subchapter II Definitions
25.08.040. Definitions generally -- Gender
25.08.050. Administrative Code
25.08.060. Administrator
25.08.068. Amplified Noise.
25.08.069. City Holiday
25.08.070. Commercial agriculture.
25.08.080. Construction.
25.08.090. dB(A).
25.08.100. Districts
25.08.110. Emergency work.
25.08.120. Equipment.
25.08.140. Gross vehicle weight rating (GVWR).
25.08.150. Impulsive sound.
25.08.155. Legal Holiday
25.08.160. Leq.
25.08.165. Lmax
25.08.168. Major public project
25.08.170. Motorcycle.
25.08.180. Motor vehicle
25.08.190. Motor vehicle racing event
25.08.200. Muffler.
25.08.210. New motor vehicle.
25.08.220. Noise.
25.08.221. Receiving Dwelling unit.
25.08.225. Residential disturbance.
25.08.230. Off-highway vehicle
25.08.250. Person.
25.08.260. Property boundary.
25.08.270. Highway
25.08.280. Public nuisance noise.
25.08.290. Pure tone component.
25.08.300. Real property
25.08.310. Receiving property.
25.08.315. Shoreline.
25.08.320. Sound level
25.08.330. Sound level meter
25.08.340. Special construction vehicle
25.08.350. Use.
25.08.360. Warning device.
25.08.370. Watercraft.
25.08.380. Weekday
25.08.390. Weekend
Subchapter III Environmental Sound Levels
25.08.400. Unlawful sounds
25.08.410. Exterior sound level limits.
25.08.420. Modifications to exterior sound level limits
25.08.425. Sounds created by construction and maintenance equipment
25.08.426. Plan review fee.
Subchapter IV Motor Vehicle Sound Levels
25.08.430. Sounds created by operation of motor vehicles
25.08.450. Modification to motor vehicles.
25.08.460. Tire noise.
25.08.470. Sale of new motor vehicles that exceed limits
25.08.480. Motor vehicle exemptions
25.08.485. Watercraft
Subchapter V Public Nuisance Noises
25.08.490. Prohibited.
25.08.500. Public disturbance noises.
25.08.501. Nightlife disturbance.
25.08.505. Residential disturbance violation.
25.08.508. Abatement of chronic violations.
25.08.510. Exempted sources
25.08.515. Public disturbance noise from portable or motor vehicle audio equipment.
25.08.520. Noise in public parks and places.
Subchapter VI Exemptions
25.08.530. Sounds exempt at all times
25.08.540. Sounds exempt during daytime hours -- Generally
25.08.545. Sounds exempt during daytime hours-Aircraft testing and maintenance
25.08.550. Sounds exempt from nighttime reduction
Subchapter VII Variances
25.08.560. Application -- Generally
25.08.580. Discretion of Administrator
25.08.590. Granting of variance
25.08.600. Extension of variances
25.08.610. Appeal procedure
25.08.615. Revocation of Variance
25.08.630. Temporary variance
25.08.640. Technical variance
25.08.650. Economic variance
25.08.655. Major Public Project Construction Variance
Subchapter VIII Administration And Noise Measurement
25.08.660. Authority of Administrator and Chief of Police.
25.08.670. Duties of Administrator
25.08.680. Measurement of sound
25.08.690. Technical corrections.
25.08.700. Receiving properties within more than one district
Subchapter IX Enforcement
25.08.710. Right of entry
25.08.720. Stop Work Order
25.08.730. Notice of Violation
25.08.740. Service, Mailing and Posting of Notice.
25.08.760. Review by the Administrator
25.08.765. Order of the Administrator
25.08.800. Civil Enforcement and Criminal Penalties
25.08.805. Residential disturbance penalties.
25.08.820. Penalties cumulative
25.08.890. Warning for Nightlife disturbance violations.
25.08.900. Citation.
25.08.910. Response to citations.
25.08.915. Voluntary mitigation and waiver of initial penalty for nightlife disturbance violations.
25.08.920. Failure to respond.
25.08.930. Mitigation hearings.
25.08.940. Contested case hearing.
25.08.950. Failure to appear for hearing.
25.08.960. Citation Penalties
25.08.970. Each day a separate violation.

