Editing Message precedence (section)

== International regulation ==
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:<ref>{{Cite book |url=https://books.google.com/books?id=lOIxAAAAIAAJ&q=%22ETAT+PRIORITE%22&pg=PA2513|title=United States Treaties and Other International Agreements, Volume 10, Part 3 |publisher=United States |date=1959 }}</ref><ref>{{Cite web |url=http://search.itu.int/history/HistoryDigitalCollectionDocLibrary/4.31.51.en.104.pdf |title=ITU Administrative Telegraph and Telephone Conference (Geneva, 1958) Document No. 301-E |website=ITU.int }}</ref>

{| class="wikitable"
|-
!Service Indicator
! Morse code precedence code
! Meaning
|-
| Etat Priorité Nations
| S
| Telegram to or from the United Nations
|-
| Etat Priorité
| S
| Government telegram with priority
|-
| Etat
| F
| Government telegram without priority
|-
| OBS
|
| Meteorological telegram
|-
| Urgent
|
| Urgent private telegram
|-
| A Urgent
|
| Urgent service telegram or advice
|-
| RCT
|
| Telegram concerning persons protected in wartime by the Geneva Conventions of 12 August 1949
|-
| Presse
|
| Press telegram
|-
| SVH
|
| Telegram relating to the safety of life
|-
| A
|
| Ordinary service telegram or advice
|-
| ADG
|
| Service telegram or advice relating to an interruption of communications
|}

The U.S. Code of Federal Regulations, Title 47, has included the following priorities:<ref>{{Cite book |url=https://books.google.com/books?id=DPDwPRmfRtIC&q=%22ETAT+PRIORITE%22&pg=PA527 |title=Code of Federal Regulations: 1949-1984 |date=1970 }}</ref>
* ETAT PRIORITE
* FLASH EMERGENCY
* IMMEDIATE EMERGENCY
* PRIORITY EMERGENCY
* URGENT
The current U.S. Title 47 specifies these precedence designators for radiograms:<ref>{{Cite web|url=https://www.law.cornell.edu/cfr/text/47/213.5|title=47 CFR 213.5 - Precedence designators |website=Law.Cornell.edu }}</ref>

{| class="wikitable"
|-
!Federal Government
! Domestic public correspondence and international telephone calls
|-
| Flash
| Flash emergency
|-
| Immediate
| Immediate emergency
|-
| Priority
| Priority emergency
|-
| Routine
| (No domestic equivalent)
|}