events, such as a presidential inauguration, will also utilize joc-type facilities although they are often not identified as such or their existence even publicized. multiple agency coordination center (macc): the macc is a central command and control facility responsible for the strategic, or "big picture" of a disaster. a macc is often used when multiple incidents are occurring in one area or are particularly complex for various reasons such as when scarce resources must be allocated across multiple requests. personnel within the macc use multi-agency coordination to guide their operations. the macc coordinates activities between multiple agencies and incidents and does not normally directly control field assets, but makes strategic decisions and leaves tactical decisions to individual agencies. the common functions of all macc's is to collect, gather and analyze data; make decisions that protect life and property, maintain continuity of the government or corporation, within the scope of applicable laws; and disseminate those decisions to all concerned agencies and individuals. while often similar to an eoc, the macc is a separate entity with a defined area or mission and lifespan whereas an eoc is a permanently established facility and operation for a political jurisdiction or agency. eocs often, but not always, follow the general ics principles but may utilize other structures or management (such as an emergency support function (esf) or hybrid esf/ics model) schemas. for many jurisdictions the eoc is where elected officials will be located during an emergency and, like a macc, supports but does not command an incident. equipment ics uses a standard set of equipment nomenclature. ics equipment include: tanker – this is an aircraft that carries fuel (fuel tanker) or water (water tanker). tender – like a tanker, but a ground vehicle, also carrying fuel (fuel tender), water (water tender), or even fire fighting foam (foam tender). computers the importance of access to computer systems is becoming more common within the advancements to technology and to support the standardised approach to incident and emergency response. commonly referred to within the command and control structure within united states army, computers and computer-based systems allow responders to interface with each other to have access to the latest information for decision making. see incident command post (icp) for more information. type and kind the "type" of resource describes the size or capability of a resource. for instance, a 50 kw (for a generator) or a 3-ton (for a truck). types are designed to be categorized as "type 1" through "type 5" formally, but in live incidents more specific information may be used. the "kind" of resource describes what the resource is. for instance, generator or a truck. the "type" of resource describes a performance capability for a kind of resource for instance, in both type and kind, the objective must be included in the resource request. this is done to widen the potential resource response. as an example, a resource request for a small aircraft for aerial reconnaissance of a search and rescue scene may be satisfied by a national guard oh-58 kiowa helicopter (type & kind: rotary-wing aircraft, type ii/iii) or by a civil air patrol cessna 182 (type & kind: fixed-wing aircraft, type i). in this example, requesting only a fixed-wing or a rotary-wing, or requesting by type may prevent the other resource's availability from being known. command transfer a role of responsibility can be transferred during an incident for several reasons: as the incident grows a more qualified person is required to take over as incident commander to handle the ever-growing needs of the incident, or in reverse where as an incident reduces in size command can be passed down to a less qualified person (but still qualified to run the now-smaller incident) to free up highly qualified resources for other tasks or incidents. other reasons to transfer command include jurisdictional change if the incident moves locations or area of responsibility, or normal turnover of personnel due to extended incidents. the transfer of command process always includes a transfer of command briefing, which may be oral, written, or a combination of both.