Max Clearance is an upgrade available only to Allied Construction Yards and Command Hubs.
Once researched, it opens the 3rd tier of units in the Allied Arsenal. However, a Defense Bureau may also be required to unlock some defense structures and expansion units.
Note that the upgrade has only a local effect, meaning that if the Construction Yard has researched Max Clearance then it will only affect production buildings in its vicinity only.
However, other Command Hubs can be granted improved clearance separately, at the cost of researching the same upgrade multiple times.
| Boot Camp | Armor Facility | Airbase | Seaport |
|---|---|---|---|
| Tanya* | Athena Cannon | Century Bomber | Aircraft Carrier |
| Mirage Tank | Harbinger Gunship* | ||
| FutureTank X-1* | |||
| Italics = Uprising only
Bold = Base game only | |||
See also[]
 Allied Red Alert 3 Arsenal | ||||||||||||||||||||||||||||||||||||||||||
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