Containerized Firefighting Equipment: The roller container standards have become the basis of containerized firefighting equipment throughout Europe. The permanent mounting of equipment creates a large number of specialized fire trucks while containerization allows to use only one transport truck with a level arm - in Germany it is called WLF (GermanWechselladerfahrzeug / swap loader vehicle). In practical usage there are lighter specialized fire trucks for everyday usage while larger fire and catastrophic situations can be handled by using WLF in a shuttle operation bringing as much equipment to the scene as needed. The containers come in a great variety with national regulations to control common types, for example in Germany one may find: (a) AB-Dekon (Abrollbehälter Umweltschutz/Strahlenschutz/Gefahrgut) contains steam cleaners and shower compartements; (b) AB-MANV (Abrollbehälter Massenanfall von Verletzten) is mainly a stretcher carrier for a large number of injured; (c) AB-Nachschub (Abrollbehälter Rüst) contains construction tools to handle complex scenes; (d) AB-Schaum (Abrollbehälter Wasser/Schaum) a tank for remote areas with insufficient water supply (in the UK Foam Distribution Unit / foam pod); (e) AB-ELW (Abrollbehälter Einsatzleitung) coordination center where multiple ELW may be combined to handle larger scenes (in the UK Command and Control Unit / command pod); (f) AB-Schlauch (Abrollbehälter Schlauch) water hose extensions to attach to water supply in a larger distance (in the UK Hose Laying Unit / hose pod); (g) For the most part the replacement of older fire trucks takes the form of new AB units in Germany. The AB units may be built from standard containers with equipment installed from different suppliers as required by the fire department. The WLF loader vehicle can be purchased independently with the availability of a wide variety of trucks on the market (that are not originally designed for firefighting) - the trucks are sent to specialized workshops that can convert them to WLF fire trucks by adding a hook lift, siren and communications. The AB units may be used far longer than the WLF trucks as the latter can be exchanged independently - this makes maintenance cheaper especially for special equipment that is only rarely needed. Additionally some firefighting equipment like the decontamination pod have advantages for military conversion dispatching them by standard NATO container transport