Expired Tabs, Loud Mufflers and What To Do About Them

Q1: I have noticed that a lot of cars have expired tabs. Is that not being enforced anymore? What is the current fine for not having current tabs displayed?

Q2: Why are the police not enforcing a muffler regulation? I hear muffler-free cars all days sounding off; have things changed?

A: What do expired tabs and loud exhausts have in common? It sounds like the setup for a joke, doesn’t it? I wish I had a good punchline for you. While I’m thinking of one, here’s a summary of the law for both violations:

Expired tabs: “Failure to renew an expired registration before operating a vehicle on the public highways of this state is a traffic infraction.” If you were to get a ticket for expired tabs, you’d be looking at a $136 fine for tabs expired less than two months, or $228 if they’ve been expired longer.

Mufflers: Every vehicle shall be equipped with a muffler in good working order, and no person shall modify the exhaust system in a manner which will increase the noise above that emitted by the muffler originally installed on the vehicle.

I haven’t thought of a punchline yet, but here are two things they have in common: they both are violations of traffic law, and neither of them are factors in traffic crashes. I’m not suggesting that complying with these laws isn’t important; I want our roads, sidewalks and bike lanes funded, and I don’t want loud mufflers disturbing my neighborhood. But you asked a traffic safety guy, and I wouldn’t be honest if I said that all laws have equal weight and deserve similar levels of enforcement.

As to wondering if these laws aren’t being enforced, I believe that they are, but maybe not as frequently as you’re hoping for. I recently had a conversation with a deputy about traffic enforcement, and he commented that while he was more than willing to take action on speeders and distracted drivers, he didn’t get too interested in enforcing expired tabs until they were past their expiration date by at least several months. Is that slacking on the job? Not at all. It’s prioritizing your work.

Here’s what I mean by that: The top high risk behaviors that lead to fatal crashes are impairment, speeding, distraction and lack of seatbelt use. The road users most at risk are young drivers, motorcyclists, pedestrians and bike riders. When law enforcement agencies look at the data, it’s pretty clear which behaviors need enforcement attention and which road users are most vulnerable. Across the state, police regularly conduct high visibility emphasis patrols focusing on these high risk behaviors. As far as I know, we’ve never had an emphasis patrol for expired tabs or loud mufflers.

I know that some officers make it their goal to get an impaired driver off the road before the end of their shift. Some focus on speed enforcement or distracted driving in high-crash areas. And while they’re doing this, they encounter drivers with expired tabs, loud mufflers or other traffic violations that they weren’t out looking for but now have the opportunity to enforce, either with a ticket or some driver education, as may be appropriate. Essentially, good traffic enforcement involves looking at the data and going where it leads. The focus, then, is on high-risk driving behaviors and the small percentage of drivers that cause a disproportionate number of crashes.

And what do expired tabs and loud mufflers have in common? They’re both loud, except for the tabs. Hey, I’m a traffic nerd, not a comedian. It’s the best I could do.

5 Replies to “Expired Tabs, Loud Mufflers and What To Do About Them”

  1. Low risk unless there is a correlation between expired tags and expired insurance. I can’t help wondering if those who don’t have the money or inclination to take care of one might also fail to take care of the other. In that case it might be wise for law enforcement to pay a little more attention.

    1. Apparently you haven’t been stopped by a police officer for tag or muffler violations. Where I live in Texas the police use that as a reason to stop a person and search their vehicle.
      And most of the people with expired tags are single women with kids who have to choose between vehicle tags insurance and such things like that or buy milk and food for their kids.
      Or pay the electric or water bill.
      And the uncompassionate police write them a 300 dollar ticket making it even more difficult To provide for their children. That’s child abuse in my eyes

      1. The Washington State Constitution has been interpreted to not allow a search in those circumstances. So unless you’re somehow pulled over by a federal officer, they cannot search your car.

  2. And what do expired tabs and loud mufflers have in common? Neither make your car go faster.

    I’m sort of serious about that, and almost wrote it the other way–what’s the difference, expired tabs actually help your car go faster. (The car being slightly lighter without the new tab.)

    We’re not in the 60s anymore. Engines have been highly tuned to get the best MPG, and that means the most power, and that means things like new intake systems or exhausts don’t really make as much of a difference as in the past. Ford even has the F-150’s audio system make fake engine noise because the systems are so quiet.

    1. Here’s a video showing a car getting about a 2% improvement from a catback system. It’s not until the end that EE (a very good source of information) explains that the temps were cooler and barometric pressure higher with the catback tests. That could easily explain the small differences.

      https://www.youtube.com/watch?v=FC-WuvZvVrQ&ab_channel=EngineeringExplained

      You could probably get more of an improvement with some sort of software change on the engine’s programming, without the extra noise. At greater risk of engine failure, however, depending on the tune.

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