Which option in ALIS allows users to account for irregular items like battery-powered wheelchairs?

The option in ALIS that allows users to account for irregular items like battery-powered wheelchairs is categorized as "Non-standard." This classification is essential because non-standard items often require special handling or considerations that differ from typical luggage or cargo.

Battery-powered wheelchairs, for instance, may have specific safety protocols due to their batteries and unique dimensional or weight characteristics. By using the non-standard category, ALIS ensures that these items are appropriately tracked and managed, accommodating their specific requirements during transport.

In contrast, the other categories such as standard, heavy item, or regular item do not account for the unique needs and specifications that non-standard items entail, which is crucial in ensuring both safety and compliance with transportation regulations. This distinction is vital for ground handling and logistics in air transport, particularly for passengers with disabilities who rely on such equipment.