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DMV-cycle recall mailings, late-renewal urgency, and pass-guarantee campaigns. Built for smog check stations.
By the time the DMV reminder lands in your customer's mailbox, they're 30 days from expiration and Googling for the cheapest smog station nearby. Catch them before the deadline with a better offer and you keep them on the 2-year cycle.
Smog Check Renewal Reminder — 2 waves, DMV-cycle timing, follow-up call after Wave 1
"Your registration expires [month] — get smogged now." Pass guarantee or in-and-out time promise. QR to online booking. Mailed monthly to whichever cohort is 60 days out.
Outbound call to non-bookers. "Wanted to make sure you got the reminder — want to come in this week? 7 days a week, no appointment needed." Pre-loaded script.
Second postcard for non-responders. "Your DMV deadline is [date]." Stronger offer (free retest if you fail) and reinforced convenience promise.
Four design styles, all themed for your smog check station and ready to customize. Same offer, same call follow-up — just pick the look that fits your brand.
Bold
Photo
Minimal
Gradient
Wave timing, call scripts, and postcard copy are pre-configured for DMV-cycle recall. You only customize the offer (pass guarantee, free retest, in-and-out time) and your station branding.
Export past customers from your station management software (GoldStar STAR Smog, ESP, or similar) as CSV. Include registration expiration date as a custom column. Our import wizard auto-maps name, address, phone, last visit date, and next due date.
PostKnock segments your list into monthly cohorts based on expiration date. Each cohort mails 60 days before its DMV deadline. Wave 2 schedules itself 30 days later for non-responders.
Scripts are pre-loaded. Staff logs call outcomes. Booked customers drop out and re-enter on their next 2-year cycle automatically.
A typical smog check station has 800 past customers in their last 2-year cycle. Here's a 2-wave renewal campaign:
~2:1 ROI per cycle — but the real win is the next cycle. Customers who pass with you almost always come back in 2 years, making this closer to ~4:1 over the second cycle.
Run your own numbers in the ROI calculator.
Free to explore — you only pay when you're ready to send. 30-day money-back guarantee.
Single-wave postcard campaigns · Unlimited contacts · From $1.05/piece
Everything in Free + calls, sequencing · From $0.79/piece
Per-piece pricing includes printing + USPS First-Class postage. No hidden fees.
Drop in your station logo, hours, phone, and the renewal month. The live designer handles the rest.
PostKnock also works for
Specific smog check station campaigns
60 days before the DMV registration expiration date is the sweet spot. The driver hasn't received the DMV reminder yet (those typically arrive 45–30 days out), so your postcard establishes the recall before they have time to think about going elsewhere. PostKnock supports custom CSV columns so you can include the registration expiration on each card and segment by month.
Yes, with realistic guardrails. "We pass it or you pay nothing" works well in California where retest is required after a fail. Limit it to vehicles under a certain age (e.g., under 15 years) to manage risk. Tie it to a specific station promise ("7 days a week, no appointment needed, in-and-out in 20 minutes") and customers respond. Generic "we'll help you pass!" copy doesn't move the needle.
Most California DMV cycles are 2 years for cars 8+ years old. If your station management software (e.g., GoldStar STAR Smog, ESP) records the registration month, segment past customers into 12 monthly cohorts and mail each cohort 60 days before their expiration. PostKnock's CSV import wizard supports a 'next_due_date' column for exactly this purpose.
The California Bureau of Automotive Repair reports roughly 9–12% of vehicles fail their initial smog check. That's relevant for marketing because failed customers usually need a re-test plus diagnostic work or a STAR-certified retest. Build the relationship on Wave 1 (the initial test) and you capture the re-test, the repair referral, and the next 2-year cycle.
Sparingly, on the back. Smog check is a transactional, time-pressured service — cluttered offers reduce response. Keep the front focused on the smog check, the DMV deadline, and one offer. On the back, a small "While you're here" tag-along (oil change, tire rotation) is fine but shouldn't dominate.
PostKnock smog check postcards start at $1.05 per 4x6 postcard on the Free plan and drop to $0.79 on Pro. No setup fees, no minimums, no contracts. Pricing includes printing and USPS First-Class postage.
Stop waiting for past customers to remember you. Start mailing the DMV-cycle reminder that locks in the next 2 years.
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1 ANA (Association of National Advertisers), Response Rate Report 2023, published February 2024.
2 IBISWorld, “Vehicle Inspection & Emissions Testing in the US,” 2024 industry report.