Monthly parking contracts are the foundation of predictable revenue for most facilities. The credential management that supports them, however, is often handled inconsistently—credentials issued on the spot, renewals processed late, and departing parkers left active in the system long after they’ve gone.
This creates real problems: unauthorized access, disputed charges, and access lists that no longer reflect your actual parker population. Here’s a practical framework for managing monthly credentials across the major credential types.
The Core Principle: Credentials Should Have Expiration Dates
Regardless of credential type, every monthly parker credential should carry an expiration date tied to their contract term. Access systems that support date-based restrictions should be configured to automatically deactivate credentials on the day after the last paid period ends.
This single practice eliminates the majority of “former employee still has access” problems. It shifts the workflow from reactive (catching unauthorized access after the fact) to proactive (access ends automatically unless renewed).
Proximity Cards and Key Fobs
Proximity cards (HID, EM4100, Mifare, etc.) and key fobs are still the dominant monthly parker credential in most mid-to-large facilities. They’re durable, work in all weather, and don’t require the parker to have a charged phone.
Best practices for card and fob management:
- Assign a unique credential number to each parker. Never reuse a card or fob number until you have confirmed the credential has been returned and deactivated. Reusing numbers creates audit trail confusion.
- Log the credential number in your parker record. This sounds obvious, but many operations track parkers by name only, making it difficult to deactivate credentials when parkers move on.
- Charge a lost credential replacement fee. This discourages casual “I left it at home” behaviors and provides a paper trail when cards are reported lost. A common range is $10–25 per card.
- Collect credentials at contract end. Build a return step into your offboarding process. Deactivate the credential immediately when a contract ends—don’t wait for the card to be returned.
- Inventory your cards annually. Compare the number of active credentials in your system against the number of active contracts. Any discrepancy is worth investigating.
License Plate Recognition
LPR as a monthly credential is increasingly common, particularly for facilities that want to offer a frictionless experience without issuing physical credentials. The parker’s plate is the credential.
LPR-specific management considerations:
- Capture plate at enrollment, not from memory. Have the parker pull up to the entry camera during enrollment so you capture the exact plate format the system will see, rather than relying on a handwritten form that might contain transcription errors.
- Collect both the primary vehicle and a secondary vehicle plate if your contract allows for a second vehicle. Parkers with two vehicles are common, and having only one plate on file creates friction.
- Plan for plate changes. Vehicle registration renewals sometimes involve plate changes (especially vanity plates). Establish a clear process for parkers to report plate changes and update the system promptly.
- Deactivate on contract end just as you would a card. LPR plates in an access list are credentials—they need expiration management like any other credential type.
Mobile Credentials and Apps
Mobile-based parking access—where a parker uses an app on their phone to trigger the gate—is the newest category and comes with its own management nuances.
- Tie the mobile credential to the parker’s account, not the device. If your system issues the credential to a device ID rather than a user account, a phone upgrade can lock a parker out and require a manual re-enrollment.
- Plan for low-battery situations. Mobile credentials fail when phones die. Your entry lane should have an intercom or fallback option for parkers who can’t present a mobile credential due to a dead battery.
- Communicate clearly about app updates. When your platform requires an app update, parkers who haven’t updated may experience access issues. Proactive notification reduces frustrated calls.
For broader guidance on structuring parker onboarding workflows, IPMI’s operations resources at parking.org cover credential management practices across a range of facility types.
The Quarterly Credential Audit
Regardless of credential type, a quarterly list review catches problems before they become costly. The review should include:
- Compare active credentials in the access system against active contracts in your billing system. Any credential with no matching active contract should be investigated and deactivated.
- Identify credentials that haven’t been used in 60+ days. Reach out to those parkers—they may have left without formally ending their contract.
- Check for parkers who renewed their contract but received a new credential instead of reactivating the existing one (a common data entry error that leaves the old credential active).
Monthly credential management is operational housekeeping, but it directly supports revenue integrity, physical security, and audit readiness. A clean list is worth the time it takes to maintain it.
The security dimensions of stale credentials—unauthorized access, revenue leakage, and audit exposure—are covered from a security perspective in our article on parking access control credential hygiene. For operations using LPR as their primary credential mechanism, the LPR camera implementation pitfalls article covers the plate capture and read accuracy considerations that affect how reliable plate-based credentials are in practice. Parking BOXX’s parking kiosk supports proximity cards, fobs, LPR, and mobile credentials from a single management platform, with date-based expiration controls and audit reporting built in to keep monthly parker lists clean.