Short answer: no. Wait until the posted window ends.
You are standing next to your car. The sweeper went by ten minutes ago. The sign says 8 a.m. to 10 a.m. and it's 8:40. The block is clean. Nobody is coming back.
Park there anyway and you can still be cited. The restriction on the sign is a no-parking window, not a description of the sweeper's route. It starts and ends at the times printed on the sign. The sweeper's actual arrival is irrelevant to it.
What the sign actually says
Read the sign literally. A typical LA street-sweeping sign says something like NO PARKING 8 AM TO 10 AM TUESDAY — STREET CLEANING. Everything in that sentence is a rule except the last two words, which are the reason for the rule.
The sign does not say "no parking until the sweeper has passed." It does not say "no parking while the sweeper is on this block." It says no parking, these hours, this day. Under LADOT's parking rules, posted restrictions are enforceable as long as the sign is legible and visible, and signs can be posted ahead of or behind your space — so check the whole block, not just the pole nearest your bumper.
The cleanest confirmation of how this gets enforced is in LADOT's own example of an invalid citation on its contest-a-citation page: sweeping hours of 7 a.m. to 9 a.m., ticket written at 9:04, citation thrown out. The deciding fact is the clock against the sign. Not the sweeper.
The three versions of this question
People asking "can I park now?" usually mean one of three different things. They have different answers, but the practical advice is the same in all three.
1. The sweeper already passed
You watched it go by. The window still has an hour left.
A traffic officer can cite you during that hour. Enforcement officers don't ride behind the sweeper; they patrol independently, and "it already came" isn't a defense that maps onto anything on the sign. This is the single most common way people get a street-sweeping ticket on a block they were paying attention to.
If you must take the risk, understand what you're risking, and don't confuse a clean gutter with a legal spot.
2. The sweeper never showed up
Your block is on today's schedule. The window is closing. Nothing came.
This one is genuinely murkier, and I'd rather tell you it's murky than tell you something confident and wrong. When the city moved most routes from weekly to every other week, LADOT said at the time that traffic officers would enforce street sweeping only on days that sweeping occurs, and that posted signs would not be changed. That was a 2021 statement about a schedule change. I have not found a current LADOT page confirming that a same-day no-show voids a citation, and I'm not going to tell you it does.
What StreetsLA says now is blunter: vehicles will be cited if they are parked in restricted areas on days when street cleaning is scheduled. Scheduled. Not completed.
So: a no-show may give you something to argue on a contest. It is not a reason to park.
3. Your block is on an "off" week
Most posted routes are now swept biweekly — first and third weeks of the month, or second and fourth (StreetsLA). The signs still show the day. They don't show the week.
That's the ugly part of the current system: the sign can be in force on a day the sweeper was never scheduled. StreetsLA runs a lookup and a 24- and 48-hour notification signup for your specific address, which is the only way to know your block's weeks. Absent that, treat every posted day as live.
What it costs
A street-sweeping citation in LA averages $73. That's the ordinary outcome, and it is the cheap one — leave a car somewhere that gets towed and you're into $400+ for tow and impound.
One exception worth knowing: on national holidays, street-sweeping restrictions are among the rules LADOT does not enforce unless the sign specifically says holidays are enforced. LADOT publishes the holiday exemption list. Safety violations — red zones, hydrants, blocked driveways — are enforced every day of the year.
If you already have the ticket
Contest it only if you have an actual defect, not a story. The ones that hold up are about the sign or the clock: no sign on your block, a sign obscured or defaced, a citation time outside the posted window, a day not listed on the sign. Photograph the sign and your car with the timestamp visible, from the angle a driver would see it, before you move. LADOT's process starts with an Initial Review, then an Administrative Hearing you must request within 21 days of the review decision — details on LADOT's contest page.
"The sweeper had already passed" is not on that list.
The rule to actually live by
Curb your car until the last minute on the sign, then park. Set the alarm for the end of the window, not the start.
If you want the posted window for a specific block without squinting at a pole, the Curbswap iOS app does a free rules lookup for any LA address — plus a sweep-zone map, alerts, and CurbScout, which decodes a photo of a confusing sign. No account, no subscription. And if you'd rather not be standing on the curb doing this math at all, a subscription sends a vetted driver to move the car before the window opens and relocate it to a legal nearby spot, with timestamped photos and GPS of where it ended up.
