Britax MARATHON CLASSIC User Manual page 14

Vehicle Compatibility
4. ELR (Emergency Locking Retractor) with a Sliding Latch Plate
Has a latch plate that freely
a
slides along the vehicle belt
webbing.
Has a retractor that locks only
b
in an emergency situation such
as sudden stop or crash.
IMPORTANT: This belt type requires the
use of the lock-offs built into the seat for
rear- and forward-facing installations.
Lap Belt
5. ALR (Automatic Locking Retractor)
Has a latch plate that is sewn
a
into the webbing.
Has a retractor that stops the
b
belt from being pulled out
again once the belt webbing
has been pulled out at least
24 in. (61 cm).
12
Latch Plate