Definition
An official FAA publication titled 'Contractions' that lists the standardized abbreviations, acronyms, and shorthand codes used in air traffic control, NOTAMs, flight planning documents, and other FAA operational communications. It is the authoritative reference for what each contraction officially means within the National Airspace System.
Plain English
It is the FAA's official rulebook of approved short codes. When you see a strange abbreviation in a NOTAM or ATC document, this is the book that tells you what it really stands for.
Context Anchor
Seen when decoding aviation abbreviations, especially in Notices to Air Missions and FAA reference material.
Derivation
JO' stands for 'Joint Order,' meaning the order applies across multiple FAA divisions (such as Air Traffic and Flight Standards). The number 7340.2 is the filing reference within the FAA's numbered order system. Knowing this helps you recognize that FAA Orders are formal, binding internal directives -- not advisory material.
Why Pilots Care
Pilots use it to correctly interpret coded information in preflight briefings and NOTAMs so they understand runway closures, equipment outages, and other critical operational details.
Intuition Check
Do not read Order here as a controller telling a pilot what to do. Here, Order means an official FAA directive. Do not read Contractions as physical tightening; here it means approved shortened word forms.
Example Sentence 1
When the dispatcher could not decipher an abbreviation in the NOTAM, she looked it up in FAA Order JO 7340.2.
Example Sentence 2
The handbook refers readers to FAA Order JO 7340.2 for the full list of approved aviation contractions.