From Alpha Centauri Wiki
|Allowed for Land units|
|Allowed for Sea units|
|Allowed for Air units|
|Allowed for Noncombat units (excluding terraformers)|
|Allowed for Terraformer units|
|Allowed for Combat units|
Reduces the movement of land and sea units by 1 and air units by 50%+1, except for Unity Foils, disabled in normal play.