The Central Limits of START

Strategic Nuclear Delivery Vehicles (SNDVs)
Deployed ICBMs and their launchers
Deployed SLBMs and their Launchers
Deployed Heavy Bombers

1600

Accountable Warheads:

6000

Total Warheads deployed on
ICBMs and SLBMs:

4900

Warheads on Mobile ICBMs:

1100

Warheads on 154 Heavy ICBMs:

1540

Heavy Bombers equipped for long
range nuclear ALCMS (LRNA):

US - 10 warheads attributed to the
first 150 bombers. Each additional
bomber is attributed with a warhead
count equal to the number of LRNA
for which it is equipped. No LRNA
heavy bombers will be equipped with
more than 20 ALCMs.

USSR - 8 warheads attributed to the
first 180 bombers. Each additional
bomber is attributed with a warhead
count equal to the number for which
it is equipped. No LRNA heavy bomber
will be equipped with more than 16 LRNA.

Heavy Bomber Aircraft
equipped nuclear weapons
other than LRNA:

1 warhead per bomber

Throw-weight:

The throw-weight ceiling, the aggregate
weight of the payload of ICBMs and
SLBMs, has been set at 3600 metric tons.

Timetable for Reductions:

Seven years in three phases, with equal
levels at the end of each phase.

Duration of Agreement:

Fifteen years unless superseded earlier,
with an option to extend for five years
increments if both sides agree.