Galactic Civil Aviation and Spaceflight Operations Code

Galactic Civil Aviation and Spaceflight Operations Code, or GCASOC, was made standard in the early days of spacefaring craft and after a sudden increase of common commercial aircraft on Earth as a natural extension of Earth's standard International Civil Aviation Organization's callsigns. GCASOC is a now a galactic functioning standard for most commercial spacefaring vessels.

Vessel Call-codes
Like operation distinctive callsigns of yesteryear for standard planetary-restricted aviation, vessels designated according to GCASOC abide by an expanded callsign system. Vessel's callsigns, synonymously referred to as "call-codes," depend on a randomized alphanumeric 8-digit code, separated into two clauses by a dash.

The first clause refers to license registration of the vessel, whereas the second 2-character clause refers to the model designation of the vessel. In addition to an 8-digit alphanumeric callsign, vessels in accordance with GCASOC also establish a reference alias, which conventionally is a more typical vessel operator-chosen name. These names are typically only a formality for ease of use in transponder communication, and in reality the only established standard is a vessel alphanumeric callsign.

Keywords
Otherwise, GCASOC language for formal docking and departure of vessels operates based on several keywords. The necessity in establishing functioning keywords is largely due to the widespread use of automation technologies in vessel transponder systems. Typical vessel procedures and their corresponding keywords are as follows.

Note terms in curly braces {} are optional, and terms in quotation marks ("") are non-varying verbal keywords. location, port-name "AC" {city-reference} Typical header for outgoing GCASOC communication. AC refers to an antiquated term "air controller," or "air traffic controller." "this is" reference-alias Establishment of reference alias to transponder system. "call-[sign/code]" call-code Establishment of vessel call-code lookup to transponder system. "requesting" Indicates system-driven request. "initiation of docking protocol" Indicates system-automated docking procedure for aforementioned vessel. "docking" port-name Indicates docking procedure for vessel-requested landing port or pad. "docking near" port-name Alias for vessel-requested docking procedure. "keypair for departure" Indicates system generation of custom hexadecimal keypair in matching a vessel with departure clearance. "modified" Indicates modification to previous vessel-driven request. "complimentary" Indicates a joining of requests. Prevents unnecessary additional transmissions. "over" End-of-transmission (EOT). "hold" Contextual usage, either hold previous request or value, or indication of a pause in transmission. "standby" Indicates continued pause in transmission.

Language
All GCASOC communication by convention is to be held in galactic common by convention. In practice, either local system language is used, or galactic common if requested. Operators are typically automated, though by code manual monitoring is required.