- UL Level One standard to protect against medium power small arms (Super 38 Automatic).
- UL Level Two standard to protect against high power small arms (.357 Magnum Revolver).
- UL Level Three standard to protect against super power small arms (.44 Magnum Revolver).
- UL Level Four standard to protect against high power rifle attack (30-06 Rifle) where anticipated threat levels are extremely high.
- UL Levels Five through Eight to protect against military assault weapons using armour piercing ballistics.
- Windows can be manufactured as part of a custom glazed system suitable for integration into the interior fit up or building envelope.
Manufactured under the license of Ambico