Exact, or objective, organization schemes sort content into discrete, mutually exclusive categories whose boundaries are generally well known and easy to apply. They include alphabetical, numerical, chronological, geographical, spatial, organizational, and media-based schemes. Their main limitation is that they require users to already know what they're looking for, they support known-item seeking well, but don't help someone who's browsing without a specific target in mind.
Alphabetical schemes don't scale well for long lists and work best as a secondary rather than primary scheme. Chronological schemes suit content where time is the organizing principle, but long lists should be broken into eras or periods rather than left as one continuous list. Organizational schemes mirror a company's internal structure, which works for intranets where users already know that structure, but confuses public-facing sites where customers don't.
Exact schemes are easy to build and easy to maintain, the trade-off is that they only work well for people who already know exactly what they're hunting for.
1: Chronological. Looking up a recall by issue date is a direct match for a time-based organizing principle.
2: Geographical. Finding the nearest branch is inherently a location-based task, the defining case for a geographical scheme.
3: Alphabetical. Looking up a known person by name is a classic alphabetical use case, the same logic that makes alphabetical schemes work well for dictionaries and directories.
4: Organizational. Mirroring the company's actual department and team structure, for an audience of employees who already know that structure, is exactly the case where an organizational scheme succeeds.
Chronological remains the stronger primary scheme for the recall archive because of how people actually search this kind of content: they're often more urgently concerned with recency, a brand-new recall matters more immediately than an old one, and many customers remember roughly when they purchased or heard about an affected product rather than its precise product name. A reverse-chronological ordering, most recent first, matches both that recall behavior and the safety-critical need to surface new recalls prominently.That doesn't make alphabetical useless here, it could still work well as a secondary scheme for customers who do know the exact product name. But as the primary scheme, chronological better serves how most people actually approach a recall lookup.