Newport Beach vehicle noise tickets: they are invalid, and here is how to fight one

The short version

• State law bars cities from regulating vehicle noise. California already has rules for loud vehicles, with a real limit and a real test, and cities are not allowed to write their own on top of them. The CHP's own guidance says citations like this one "are invalid." The law.
• Newport Beach writes them anyway: a fine payable to the city, based on nothing but an officer's opinion. No standard, no meter, no measurement, ever. The data, the hearings.
• I am contesting mine on the law alone. The decision is pending, and this page will be updated with the result. A hearing officer has already dismissed another driver's citation on the same ground. What happened.
• Nobody should pay an invalid fine because paying is easier than asking questions. Contest yours. It is the only path where the money comes back, and there is no downside: no points, no record, no insurance impact. You have 21 days. The steps, the templates.

What happened

In spring 2026, I was pulled over on a public street in Newport Beach. I had revved the engine of my car, a factory-stock vehicle, twice while stopped. The sound lasted a few seconds in total.

The officer issued a $200 administrative citation under Newport Beach Municipal Code section 10.28.007, "Loud and Unreasonable Noise," the city's general nuisance noise ordinance. The citation described the violation as modified exhaust and engine revving. No decibel meter was used. No measurement of any kind was taken. The exhaust was never inspected. It was entirely factory equipment.

I contested it. I submitted a written statement contesting the citation in full, requested an administrative hearing with the required $200 deposit, filed a public records request for the police body-worn camera recording of the stop, and submitted written evidence arguing that the citation was invalid under state law.

The police department produced the body-worn camera recording. It shows the officers discussing the administrative citation before making contact with me. It also records the citing officer explaining the choice of an administrative citation instead of a state Vehicle Code ticket, and describing the administrative citation as the lighter option. A Vehicle Code ticket would have carried the state's objective testing process, described below.

I am contesting none of the facts. I am not arguing about whether the engine made sound. The entire defense is that the city had no legal authority to issue the citation. The contest is pending, and this page will be updated with the outcome. If the citation is upheld, the next step is an appeal to Superior Court, where a judge reviews the case fresh.

Pending has its own chronology. The city's code gives a recipient 21 days from service to contest, with the full fine on deposit, and forfeits the contest if the deadline is missed. The same code requires the hearing officer to issue a written decision within ten days of the hearing (NBMC 1.05.090(A)). Across the produced hearing decisions that record both dates, the average gap from hearing to signed decision is seven days, and the longest is fourteen. As of this writing, more than three weeks have passed since my hearing with no decision served. Asked about the ten-day provision, the city responded in writing that it binds only the hearing officer's delivery to the city, that no deadline governs notifying the appellant, and that no deadline exists for the city's administrative processing of hearing results.

Alongside the contest, I filed a public records request under the California Public Records Act for the city's citation data. Those numbers are below, followed by the legal argument, the economics of contesting, and templates for anyone who receives one of these citations.

Why these citations are invalid

The argument on this page applies to municipal citations for motor vehicle noise: engine revving, exhaust sound, and similar. It does not apply to citations for parties, amplified music, construction, or other noise, which state law leaves to cities.

California law does not leave vehicle noise regulation to cities. The chain of authority is short and each link is publicly verifiable.

1. State law preempts local vehicle ordinances

California Vehicle Code section 21(a) provides:

Except as otherwise expressly provided, the provisions of this code are applicable and uniform throughout the state and in all counties and municipalities therein, and a local authority shall not enact or enforce any ordinance or resolution on the matters covered by this code, including ordinances or resolutions that establish regulations or procedures for, or assess a fine, penalty, assessment, or fee for a violation of, matters covered by this code, unless expressly authorized by this code.

2. Vehicle exhaust noise is a matter covered by the Vehicle Code

Vehicle Code sections 27150 and 27151 regulate exhaust equipment and set an objective standard: 95 dBA for vehicles under 6,000 pounds other than motorcycles, tested under SAE International procedures. Section 27150.2 gives a cited driver the right to an objective sound test at a state referee station, and section 27150.7 provides for dismissal on a certificate of compliance. The field is occupied.

Note what triggers this defense: the subject of the citation, not the state of the vehicle. The moment a city writes a citation for vehicle noise, it is regulating a matter the Vehicle Code covers, and section 21 bars it from doing so. Whether the exhaust is stock, modified, or absent never enters the analysis. There is no version of the vehicle that makes a municipal vehicle noise citation valid.

3. The CHP's own guidance says local citations are invalid

California Highway Patrol Information Bulletin No. 98-100, the CHP's enforcement guidance on exhaust system noise, answers the question directly. Question 12 asks whether local authorities can enact or enforce ordinances regarding vehicle noise:

No. Section 21 VC makes the VC applicable and uniform throughout the state, and prohibits local authorities from enacting or enforcing any ordinance on the matters covered by the VC unless expressly authorized to do so. In-use vehicle noise is addressed in Sections 23130 and 23130.5 VC. There is no provision in the VC that permits local authorities to adopt additional noise limitations. Consequently, citations issued under such ordinances are invalid.

The same bulletin shows what state enforcement is supposed to look like. It instructs that an officer must personally listen to the vehicle before citing (Q3), that a sound different from the factory exhaust is not a violation unless the noise is excessive (Q5), and that the standard enforcement action is a correctable one: a notice to correct, or a citation marked dismissable (Q14). The state's own guidance builds in the exits that the municipal citation removes. A transcription of the bulletin is available; CHP no longer publishes it, and circulating copies come from automotive forums, so the transcription notes its sourcing and corrections.

4. The city's own code routes vehicle noise to state law, not to Chapter 10.28

Newport Beach's Community Noise Control chapter, NBMC Chapter 10.26, shows how the city assigns noise subjects it does not measure under that chapter. When the drafters moved a noise category to another city ordinance, they named it: construction noise "shall instead be subject to the provisions of Chapter 10.28" (section 10.26.035(D)), property maintenance noise to Chapter 10.28 (subsection G), party and music noise to Chapters 10.28 and 10.58 (subsection I), animal noise to Chapter 7.20 (subsection J), and amplified sound equipment to Chapter 10.32 (section 10.26.050).

Motor vehicle noise is handled differently. Section 10.26.035(H) is the only exemption that points outside the municipal code entirely, and its note names motor vehicle noise:

Any activity to the extent regulation thereof has been preempted by state or federal law. NOTE: Preemption may include motor vehicle, aircraft in flight, and railroad noise regulations.

The drafters routed noise to Chapter 10.28 by name four separate times. Motor vehicle noise is not among those assignments; the exemption that names it points to state law. The vehicle-related sound the code does expressly send to Chapter 10.28 is personal audio equipment "used in vehicles and heard only by occupants of the vehicle in which installed" (section 10.26.050): the stereo, not the engine. The full chapter is available as a PDF copy of Chapter 10.26 and at the city's published code.

5. The city's quantitative noise code establishes violations by measurement

Chapter 10.26 shows how the city establishes a violation under its quantitative noise standards. It sets numeric limits by zone and time of day: for example, 55 dBA daytime and 50 dBA nighttime for residential property (section 10.26.025). The limits are defined as equivalent noise levels over a 15-minute measurement period, with an instantaneous ceiling of the zone standard plus 20 dBA. If the ambient noise level exceeds the standard, the ambient becomes the standard. Measurements must be taken with a sound level meter meeting the ANSI S1.4 standard (section 10.26.010), at prescribed locations with the microphone five feet above the floor or ground (section 10.26.055). Section 10.26.070 defines the evidence of a violation: "Any noise exceeding the noise level standard as specified in Section 10.26.025 and 10.26.030 of this chapter, shall be deemed to be prima facie evidence of a violation of the provisions of this chapter." Violations of that chapter are infractions enforced by the Code Enforcement Officer (sections 10.26.075, 10.26.095).

The vehicle citations at issue were written under section 10.28.007, which reads:

It is unlawful for any person or property owner to make, continue, cause or allow to be made any loud, unreasonable, unusual, penetrating or boisterous noise, disturbance or commotion which annoys, disturbs, injures or endangers the comfort, repose, health, peace and quiet within the limits of the City, and the acts and things listed in this chapter, among others, are declared to be loud, disturbing, injurious and unreasonable noises in violation of this Chapter, but shall not be deemed to be exclusive.

The rest of Chapter 10.28 shows the drafters knew how to write standards when they wanted them. Neighboring section 10.28.010 applies only to willful noise, only "after a peace or code enforcement officer has first requested that the person or property owner cease and desist," and lists twelve factors for assessing a violation, including the level of the noise and its duration. Section 10.28.045(D) sets a numeric limit for leaf blowers: 65 dBA measured at fifty feet. Nothing in the chapter addresses motor vehicle or engine noise, and 762 of the 1,295 citations in the city's Chapter 10.28 ledger were written under the one section with no willfulness element, no warning requirement, no factor list, and no number.

Section 10.28.007 has none of the quantitative code's machinery: no numeric limit, no measurement period, no meter specification, no measurement location. So even if a city ordinance could reach motor vehicle noise, the city's quantitative noise code treats a violation as something established by an instrument reading against a published standard. A citation with no measurement meets no measured standard the city has written.

6. The case law is settled

The California Supreme Court has described section 21 as stating the state's preemption of the entire field of traffic control. Rumford v. City of Berkeley (1982) 31 Cal.3d 545. Local ordinances regulating road use have been struck down on this basis since Pipoly v. Benson (1942) 20 Cal.2d 366. People v. McNeil (2002) 96 Cal.App.4th 1302 reaffirmed the line and noted that no decision has limited it.

7. The state built an objective process; the city citation bypasses it

Under state law, a driver cited for exhaust noise can obtain an objective test at a state referee station, and section 27150.7 provides for dismissal on a certificate of compliance. The municipal administrative citation has no decibel standard, no test, and no such exit. It exists in place of the state process. That substitution is what Vehicle Code section 21 prohibits, and it is prohibited whatever the test would have shown for any particular car. The defect is the bypass itself, not the outcome a driver was denied.

This is not a novel outcome. Royal Oak, Michigan threw out more than 130 engine-revving tickets after determining that its local noise ordinance conflicted with state law. CBS Detroit covered the dismissals.

The data, from the city's own records

All figures in this section come from California Public Records Act productions by the City of Newport Beach in 2026: a citation export covering Chapter 10.28 noise citations through July 4, a full ledger with fines and payment status through July 10, and the written hearing decisions.

• Section 10.28.007 citations by year, per the city's ledger: 1 in 2021, 4 in 2022, 5 in 2023, 6 in 2024, 221 in 2025, and 525 in 2026 through July 10. Total: 762. Section 10.28.007 is the catch-all section: no measurement standard, no duration element, no warning requirement. The broader citation export, which lists 937 Chapter 10.28 noise citations through July 4, shows the same pattern.
• Of the 762, the ledger records 637 at the standard fine and 125 in designated Safety Enhancement Zones at higher fines. Fine amounts run from $100 to $2,300; the most common are $200 (589 citations) and $400 (121 citations).
• The ledger records $129,719 collected on section 10.28.007 citations and $224,770 across Chapter 10.28, with $121,555 still listed as owed.
• Of roughly 746 section 10.28.007 citations issued from January 2025 onward, the city identified approximately 44 hearing results. About 6 percent contested. About 94 percent paid or defaulted.
• 58 percent of 10.28.007 citations were issued on Fridays and Saturdays. Peak periods align with holiday weekends: 75 citations across the four-day Memorial Day weekend in 2026, and 21 on July 4, 2026.
• The ledger's payment status field has five values: Paid, Open, Open/Ntc, Closed, and Suspended. There is no value for a dismissed citation. Per the city's records staff, neither the city nor its citation vendor maintains a searchable compilation of hearing outcomes. The system that runs the program can record whether a citation was paid, but not whether it was ever justified.

The ordinance existed for years and produced a handful of citations annually: 16 total across 2021 through 2024. 2025 alone produced 221. By July 10, 2026's count of 525 had already passed twice the full 2025 total. The published history line for section 10.28.007 shows no amendment since 2001; the section's text did not change over these years.

The police department described the program itself

On March 12, 2026, the Newport Beach Police Department published a public post describing a February Traffic Division deployment "in response to community concerns about loud vehicles." The department's own figures, as listed in the post: 196 total citations for loud vehicles during the enforcement period, of which 100 were administrative citations; 11 vehicles referred to the State Referee for emissions violations; 2 vehicles impounded; and 5 arrests. The post states the department "will continue these focused enforcement efforts through Spring Break and into the summer months."

The State Referee referral is the state process described above: a Vehicle Code citation followed by an objective sound test, with dismissal on a certificate of compliance. The administrative citation is the municipal route with no test and no standard. For the same category of conduct in the same month, the department used the state process 11 times and the municipal citation 100 times. The city's own ledger shows the operation: 43 section 10.28.007 citations were issued on February 27 and 28 alone.

What the hearing decisions show

The city produced more than 40 written hearing decisions under the same records request, covering Chapter 10.28 citations decided from late 2025 through mid 2026. Names are omitted here; the decisions are public records available from the city. Hearings are conducted by attorneys under contract with the city. Nearly all of the decisions uphold the citation. A small number do not, and the reasoning across them does not fit together.

• In a decision dated March 6, 2026, a hearing officer overturned a vehicle noise citation issued to a stock SUV. The appellant argued that state regulation of vehicle equipment preempts local enforcement and that a citation resting on an officer's subjective impression cannot stand. The decision states: "If the vehicle was stock and unmodified, the officers subjective interpretation that the engine or exhaust noise was too loud is not viable to sustain the citation." The city's enforcement continued at scale after this decision: the ledger records 352 further section 10.28.007 citations from March 6 through July 10, 2026.
• In a decision dated November 21, 2025, upholding a citation, the hearing officer recorded the citing officer's own description of the program: the violation "was not due to California State requirements governing exhaust restrictions, but rather for a sound/noise violation in the City." The decision adds: "The City's noise ordinance does not track State of California legal requirements for equipment, but rather requires Police and Code Enforcement Officers to use their judgment and training to determine whether such noises constitute a violation."
• In a decision dated December 16, 2025, a citation was upheld on an officer's testimony that, based on training and experience, he believed a vehicle's noise exceeded 96 decibels. No measurement was taken. The decision holds that nothing in the municipal code requires a decibel test. The state standard for exhaust noise is 95 decibels, measured under defined test conditions.
• In a decision dated July 17, 2026, a citation was upheld although the owner maintained the exhaust was stock. A decision dated June 8, 2026, by a different hearing officer, holds that "whether the Vehicle was stock or modified is not dispositive." The March 6 decision above overturned a citation for exactly that reason. Three hearing officers, three incompatible treatments of the same defense.
• In a decision dated June 8, 2026, a citation was dismissed because no city representative testified and the record contained nothing beyond a handwritten notation reading "Exhaust." The hearing officer wrote that the record contained no evidence explaining how or why the vehicle was determined to have violated the section.
• In a decision dated June 19, 2026, a hearing officer overturned a citation mailed to a vehicle's registered owner, holding that the term "property owner" in the ordinance refers to real property throughout the code, not vehicle ownership. Other decisions in the same production, including some issued afterward, uphold mailed citations against registered owners on the opposite reading.
• Across all of the produced decisions, no decibel reading appears anywhere. The evidentiary basis recited is what an officer heard: from a patrol car, through closed windows, from 120 feet, from 300 feet. Many citations were mailed to registered owners based on a license plate, without a stop, without contact, and in several cases without the driver being identified.

The pattern across the decisions is that outcomes turn on which contracted hearing officer hears the case and whether any legal argument is raised at all. In the produced set, the state preemption argument described on this page appears in one contested case. It won.

The math of fighting

Paying costs the fine. Contesting and losing costs the same amount, because the hearing request must include the full fine as an advance deposit (NBMC Chapter 1.05). Contesting and winning costs nothing but the time: the code provides that a deposited fine "shall be refunded" if the hearing determines there was no violation or the cited person was not responsible. Contesting is the only path where the money comes back. For those financially unable to pay the deposit, the code provides an advance deposit hardship waiver, requested in writing within 15 days of service.

An administrative citation is a civil municipal fine. It carries no DMV points, no criminal record, and no insurance impact.

If the hearing is lost, an appeal to Superior Court has a $25 filing fee (Government Code section 70615), and the city must reimburse that fee if the appellant wins.

Roughly 94 percent of recipients pay or default. Each contested citation requires the city to process the request, schedule a contracted hearing officer, handle correspondence, and accept the risk of dismissal.

Why I am fighting this

Everything above is documented: statutes, court decisions, city records, and one contested case. This section is my own conclusion from those documents.

California built a complete system for vehicle noise. An officer who believes a car is too loud can write a state Vehicle Code ticket. The driver then has the right to an objective sound test at a state referee station, and a certificate of compliance provides for dismissal. The standard is numeric, the test is defined, and the process protects both sides.

Newport Beach did not use that system. It used a general municipal nuisance ordinance with no sound standard, no measurement requirement, no duration element, and no testing right, and attached a fine payable directly to the city.

The differences between the two paths are not subtle. The state path involves an objective standard any car can be tested against; the city path has no standard at all. A state ticket runs through the court system; the municipal citation is paid to the city that issued it. The state path gives the driver a defense; the city path gives the driver a deposit requirement and a 21-day deadline.

The recording of my own stop captures this choice being made. The municipal citation was presented as a favor: no traffic ticket, no state referee process, no court. But the state process is the one with a defense built into it. What was framed as leniency removed the only objective protection available to me, the test my car would have passed.

I could not find an explanation for choosing the second path over the first that does not come down to revenue and convenience. If the goal were quieter streets, the state process achieves it lawfully. If the goal were citing only genuinely non-compliant vehicles, the objective test achieves that too. The goals the municipal path serves better are volume, ease of issuance, and keeping the money.

Two facts settled it for me. The city's own municipal code routes vehicle noise regulation to state law. And the program grew from 6 citations in 2024 to 221 in 2025, with 2026 past double that by July 10, without any change in state law, in the city ordinance, or, presumably, in the loudness of cars in Newport Beach. A legal interpretation did not change in 2025. An enforcement and collection practice did.

I have spent far more than $200 worth of my time fighting this. That was never in question, and it was never the point. The citation's price is set low precisely so that fighting it costs more than paying it. That is the design: not a fine you deserve, but a fine calibrated to be cheaper than your own defense. Every system built this way runs on the same quiet bet, that you will do the math, value your time correctly, and pay.

I was unwilling to lose to that bet. Pay it and you have not just lost $200; you have confirmed the model. You have told the city that a citation with no measurement, no standard, and no legal authority behind it clears at face value as long as it is priced under the cost of an afternoon. The next thousand citations are written on the strength of your receipt.

Friction is not a side effect of programs like this. It is the product. The deposit, the deadline, the form that is mentioned nowhere on the notice, the hearing that requires a day of preparation for twenty minutes of Zoom: each one exists to make surrender the rational choice. And every time surrender wins, the model gets copied, by the next department, the next city, the next fee calibrated just below the cost of asking questions.

So the time is not wasted, whatever the hearing officer decides, and it is not really being spent on a $200 ticket. It is being spent on the proposition that a government has to be right, not just inconvenient to challenge. The documents on this page are what that time has bought so far. They are free to the next person. That conclusion is mine; the documents above are everyone's.

If this happens to you

1. Do not just pay

   Read the citation. Note the code section, the fine amount, and the dates on it. A municipal code section such as "10.28.007 NBMC" means a city ordinance, not a state Vehicle Code ticket. The preemption argument on this page applies only if the citation is for motor vehicle noise, and if it is, it applies no matter what condition your vehicle is in. The defense turns on what the citation is for, not on your exhaust. The standard first-offense fine is $200, but higher fines apply in designated Safety Enhancement Zones (NBMC 1.04.060): $400 for a first violation (NBMC 1.05.020). The city has activated these zones for periods that include Memorial Day and July 4 weekends. Use the amount printed on your citation everywhere this page says $200.

2. Calendar the deadline

   The hearing request must reach the city within 21 days of service of the citation (NBMC Chapter 1.05). A citation handed to you is served that day; a mailed citation is served on the day the city deposits it in the mail, not the day it arrives. The deadline is strict. If you cannot afford the deposit, the hardship waiver request below has a shorter deadline: 15 days from service.

3. Request the hearing and pay the deposit

   The hearing request must be submitted together with the full fine as an advance deposit; no hearing is held until the fine is deposited or a hardship waiver is granted. A waiver request filed within 15 days of service pauses the deposit requirement while the city decides it (NBMC Chapter 1.05, PDF copy). Submit the city's Request for Administrative Hearing form and pay the deposit; the Revenue Division at 949-644-3141 or revenuehelp@newportbeachca.gov can provide the form. Request a Zoom hearing. The deposit is refunded if you win.

4. Request the body-worn camera footage

   File a public records request with the city for the recording of your stop. It is a public record of your own encounter, and it may contain the officer's own explanation of the citation. Template below.

5. Submit a written statement

   State that you are contesting in full and requesting an administrative hearing under NBMC Chapter 1.05. List your grounds: state preemption under Vehicle Code section 21, no measurement or objective evidence, and that the city bears the burden of proof. Template below.

6. At the hearing

   The city must provide you copies of the citation, reports, and other evidence it relies on at least 10 days before the hearing (NBMC Chapter 1.05). Appear; under the same chapter, failing to appear forfeits the fine and your administrative remedies. Confirm your submissions are in the record, state your position briefly, and do not argue about whether your engine made sound or what condition your exhaust is in. Neither matters to the argument, and the argument is that the city had no authority to cite it and no evidence meeting any standard. Answer questions honestly. Expect the written decision by mail or email; the code provides for it within about 10 days of the hearing.

7. If you lose, appeal

   California Government Code section 53069.4 gives you 20 days from service of the final decision to appeal to Superior Court. The filing fee is $25, and the city must reimburse it if you win. Review is de novo: a judge decides fresh, with no deference to the hearing officer.

8. Keep everything in writing

   Every email, every date, every confirmation. Be polite in every exchange. The record is your protection.

Templates

Three plain-text templates with bracketed fields, written for municipal citations issued for motor vehicle noise. Each is a template for your own use, not legal advice.