| Alert Status |
| Red Alert |
| Yellow Alert |
| Blue Alert |
| Collision Alert |
| Decompression Alert |
| Intruder Alert |
| Security Alert |
Blue Alert is a type of alert status with a variety of meanings, varying from starship or outpost to starship or outpost. Also known as Code Blue or Condition Blue, this alert can be used in a variety of situations and launches a variety of Starfleet procedures and protocol: on some ships, it signifies an environmental threat to the crew; on other ships, docking maneuvers; and on yet other ships, it shows landing procedures are under way.
The refit USS Enterprise (NCC-1701) switched to blue alert as it entered Spacedock. (Star Trek III: The Search for Spock)
Code Blue was issued as an alert for "statements to be made by yeomen Burke and Samuel" as part of a ruse to trap Lt Levarus in the Klingon/Federation attempt to undermine the peace treaties between both empires. (Star Trek VI: The Undiscovered Country)
For many ships without landing capabilities, like the Galaxy-class USS Enterprise-D, blue alert signified environmental failure, threatening the lives of the crew. (TNG: "Brothers")
Aboard ships with landing capabilities, such as the Intrepid-class USS Voyager, blue alert meant the ship was landing or taking-off. (VOY: "The 37's")
Some ships, like the Prometheus-class, use blue alert to indicate a separation sequence into multi-vector assault mode. (VOY: "Message in a Bottle") It remains unclear if ships capable of saucer separation like the Galaxy-class also go to blue alert.
Blue alert was declared aboard the USS Defiant when the cloaking device was activated. (DS9: "The Search, Part I")
External links[]
- Blue alert article at Memory Alpha, the canon Star Trek wiki.
- Blue alert article at Memory Beta, the non-canon Star Trek wiki.