Set parking retention around the purpose of each record, then test deletion across routine observations, held evidence and copies.

There is no universal 24-to-48-hour retention period. Set deletion rules around the purpose of each record, separating routine observations from active sessions and evidence held for a reviewed matter.
The operator's applicable rules determine the schedule and its exceptions. The configured timer then needs testing against what actually disappears, including copies outside the main screen.
OAIC: APP 11 security and disposal guidance
Paper files had physical disposal routines. Digital observations can remain in caches, exports and backups after disappearing from a dashboard. Automated recognition adds volume, making disposal something that must be designed into the record lifecycle.
An ordinary observation and evidence attached to a dispute have different useful lives. Treating them as one category can either remove relevant material too early or keep unrelated visits unnecessarily.
Short retention may suit a purpose that ends when a paid visit is reconciled. Keeping every image afterwards may be unnecessary. A specific dispute or records obligation can instead justify a separately assessed hold with restricted access.
UK ICO guidance links retention to necessity. Australian APP 11 guidance addresses destruction or de-identification when information is no longer needed, with exceptions. Neither supplies a single disposal period for every parking operator.
A completed session could leave the routine queue while selected evidence for a disputed charge remains under a documented hold. Give that hold an owner and an end condition. Labelling every event a possible dispute undermines the distinction.
Test images, plate text, local queues, exports and backup restores separately. Removing a plate field is not necessarily de-identification if an account link or precise journey remains. Someone needs responsibility for verifying expiry and releasing holds when their purpose ends.
Aero Ranger links customer-record retention to the agreement and configuration, including some continued holding and licensed processing after exit. Personal information is removed or de-identified when no longer needed, subject to applicable law.
Schedule 4's conditional 30-day export access is not a deletion deadline. Category-specific disposal and backup treatment need confirmation; the published material does not set a universal 24-to-48-hour purge for paying drivers.
Aero Ranger: Privacy policy; Aero Ranger: data processing and security schedule; Aero Ranger: master services agreement
Sources were reviewed on the publication date. Check the linked material for current details.