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operations. IMMEDIATE messages are processed, transmitted, and delivered in the order received and ahead of all messages of lower precedence. They are to be handled as quickly as possible, with in-station handling time not to exceed 30 minutes. Messages of lower precedence should be interrupted on all circuits involved until the handling of the IMMEDIATE message is completed. The use of the letter "O" comes from the original name for this level, "operational immediate".
343:) has access to a FLASH OVERRIDE (FO) capability. FO is not a precedence, but instead represents the authority and means to override all other traffic, including FLASH precedence messages. In written message traffic, the proword 'Y' is used to indicate a message having the authority to override all other traffic and is usually assigned to
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is reserved for all traffic requiring expeditious action by the addressee or for conducting operations in progress when ROUTINE precedence will not suffice. PRIORITY precedence messages are processed, transmitted, and delivered in the order received and ahead of all messages of ROUTINE precedence.
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In the early days of telegraphy and radiotelegraphy, individual countries, and sometimes individual states, sometimes set their own regulations. For example, in the period around 1909, California required that "messages must, if practicable, be transmitted immediately on and in order of receipt; if
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is reserved for initial enemy contact messages or operational combat messages of extreme urgency. Brevity is mandatory. FLASH messages are to be handled as fast as humanly possible, ahead of all other messages, with in-station handling time not to exceed 10 minutes. Messages of lower precedence
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is used for all types of message traffic justifying transmission by rapid means, but not of sufficient urgency to require higher precedence. ROUTINE precedence messages are delivered in the order received and after all messages of higher precedence. Examples include any message that requires the
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is reserved for messages relating to situations gravely affecting the security of the nation. It requires immediate delivery. Examples include reports of widespread civil disturbance, reports or warning of grave natural disaster, and requests for or directions concerning search and rescue
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Examples include requests for supplies or equipment during the conduct of an operation, time-critical items requiring quick response, and situation reports. They are to be handled as quickly as possible, with in-station handling time not to exceed 3 hours.
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documentation of its transmission or delivery; messages concerning normal operations, programs, or projects; and periodic or consolidated reports. They should be handled as soon as traffic flow allows, but no later than the beginning of the next duty day.
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Later in the development of telegraphy and radiotelegraphy, message precedence was nominally set by the
International Telecommunication Union (ITU). Various ITU Regulations provide for the following priorities:
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is an indicator attached to a message indicating its level of urgency, and used in the exchange of
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are interrupted on all circuits involved until the handling of the FLASH message is completed.
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Telegram concerning persons protected in wartime by the Geneva
Conventions of 12 August 1949
280:(CCEB), a five-nation joint military communications-electronics organization (consisting of
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432:"ITU Administrative Telegraph and Telephone Conference (Geneva, 1958) Document No. 301-E"
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The U.S. Code of
Federal Regulations, Title 47, has included the following priorities:
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Messages from public agents of the State or of the United States on public business.
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The current U.S. Title 47 specifies these precedence designators for radiograms:
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418:"United States Treaties and Other International Agreements, Volume 10, Part 3"
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community uses EMERGENCY, PRIORITY, WELFARE and ROUTINE precedence levels for
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Messages for immediate publication in newspapers, and not for any secret use.
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Indicator attached to telegraph message indicating its level of urgency
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509:"The National Communications System (NCS) Voice Precedence System"
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Domestic public correspondence and international telephone calls
520:. Defense Switched Network (DSN). Apr 21, 2012 . Archived from
37:in radiotelegraph and radiotelephony procedures.
499:. Civil Air Patrol. 21 Aug 2000. Archived from
50:not practicable, then in the following order:"
485:Electronic Code of Federal Regulations (e-CFR)
514:DISA Circular 310-70-1 Methods and Procedures
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278:Combined Communications Electronics Board
449:"Code of Federal Regulations: 1949-1984"
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178:Telegram relating to the safety of life
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481:"47 CFR 213.5 - Precedence designators"
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63:Other messages in the order of filing.
60:Message relating to sickness or death.
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403:"The Railroad Telegrapher, Volume 26"
118:Government telegram without priority
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378:Multilevel precedence and preemption
188:Ordinary service telegram or advice
41:can also provide a precedence flag.
148:Urgent service telegram or advice.
107:Government telegram with priority
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493:"Message Precedence Designators"
352:Amateur radio message precedence
345:Emergency Action Messages (EAM)
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337:National Command Authority
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272:CCEB military precedence
138:Urgent private telegram
128:Meteorological telegram
68:International regulation
560:Military communications
416:States, United (1959).
366:National Traffic System
90:Etat Priorité Nations
487:. Cornell Law School.
249:Immediate emergency
257:Priority emergency
230:Federal Government
214:IMMEDIATE EMERGENCY
39:Email header fields
537:Unknown parameter
333:Flash Override (Y)
217:PRIORITY EMERGENCY
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389:References
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305:FLASH (Z)
282:Australia
254:Priority
143:A Urgent
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372:See also
262:Routine
85:Meaning
451:. 1970.
405:. 1909.
163:Presse
133:Urgent
368:nets.
335:: The
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286:Canada
238:Flash
220:URGENT
518:(PDF)
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112:Etat
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193:ADG
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153:RCT
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