General
| RYMUR | Ryan Murder [FBI Major Case 16 investigation] |
| AMCIT | American Citizen |
| Codel | Congressional Delegation |
| GDF | Guyana Defense Force |
| GOG | Government of Guyana |
| GY | Guyana |
| NOK | Next of Kin |
| SSN / SSAN | Social Security Number |
| USG | United States Government |
| W/W | Whereabouts and Welfare |
| Z | [All government cables have a six number time stamp – two numbers for day of month, two numbers for hour of day (military time), and two numbers for minutes after hour – followed by a “Z,” denoting “Zulu” or Greenwich Mean Time. Hence, “031920Z Dec78” is 7:20 PM, GMT, December 3, 1978.] |
General Government
| AFO | Awaiting Further Occurrence |
| AFSP | Administration–Post Administration |
| ASEC | Administration–Security |
| BT | Break Text (separates the telegram or cable text from message format lines) |
| CARR | |
| CAS | Congressional Assassination Statute |
| CASC | Consular Affairs–Assistance to Citizens |
| CDES | Consular Affairs–Death and Estates |
| CGEN | Consular Affairs–General |
| EFTO | Encrypted For Transmission Only |
| E.O. | Executive Order |
| FPC | Foreign Police Cooperation |
| GDS | General Declassification Schedule |
| Legatt | Legal Attaché |
| LOU | Limited Official Use |
| NIACT | NIght ACTion (immediate action security classification) |
| NOTAL | Not To All Addresses |
| OREP / ORP | Operations–Congressional Travel |
| Retal / Reftel | Referenced teletype/telephone call |
| Sitrep | Situation Report |
| Telcon | Telephone conversation |
| UNC | Unclassified |
| UNSUB | Unknown Subject[s] |
Federal Bureau of Investigation
| FBIHQ | Headquarters, Washington, D.C. |
| ADIC | Assistant Director In Charge |
| SA / SAC | Special Agent/Special Agent in Charge |
| UACB | Unless Advised to Contrary by the Bureau |
| AQ | Albuqueque |
| AT | Atlanta |
| AX | Alexandria, Virginia |
| BA | Baltimore |
| BT | Butte, Montana |
| BU | Buffalo, New York |
| CG | Chicago |
| CO | Columbia, South Carolina |
| DE | Detroit, Michigan |
| DL | Dallas |
| DN | Denver |
| IP | Indianapolis |
| KC | Kansas City, Missouri |
| LV | Las Vegas |
| LA | Los Angeles |
| ME | Memphis |
| MEX | Mexico City |
| MM | Miami, Florida |
| NO | New Orleans |
| NY | New York |
| BQ / BQMRA | Brooklyn/Queens Metropolitan Resident Agency |
| PD | Portland, Oregon |
| SC | Sacramento |
| SD | San Diego |
| SF | San Francisco |
| SJ | San Juan, Puerto Rico |
| TP | Tampa |
| WFO | Washington Field Office |
Department of Justice
| DOJ | U.S. Department of Justice, Washington, D.C. |
| CID | Criminal Investigative Division |
| INS | Immigration and Naturalization Service |
State Department
| DOS/USDS | U.S. Department of State, Washington, D.C. |
| SECSTATE | Secretary of State |
| CA | Central America |
| ARA | Bureau of Inter-American Affairs |
| Conoff | Consular Officer |
| DCM | Deputy Chief of Mission |
| Emboff | Embassy Officer |
| AmEmb Bridgetown | American Embassy, Bridgetown, Barbados |
| AmEmb Caracas | American Embassy, Caracas, Venezuela |
| AmEmb Georgetown | American Embassy, Georgetown, Guyana |
| AmEmb Kingston | American Embassy, Kingston, Jamaica |
| AmEmb Port of Spain | American Embassy, Port of Spain, Trinidad/Tobago |
Military
| DOD | Department of Defense |
| AFB | Air Force Base |
| AFIP | Armed Forces Institute of Pathology |
| JCS | Joint Chiefs of Staff |
| JTF / USJTF | U.S. Joint Task Force |
| SECDEF | Secretary of Defense |
| USAF | U.S. Air Force |
| USSOUTHCOM | U.S. Southern Command |
Other
| HEW | U.S. Department of Health, Education and Welfare [now Health and Human Services] |
| NMCC | National Military Command Center |
| USMS | U.S. Marshals Service |
| USSS | U.S. Secret Service |
Originally posted on November 11th, 2017.
Last modified on October 10th, 2019.