<s>
Low	O
Water-Mark	O
Mandatory	O
Access	O
Control	O
(	O
LOMAC	B-Language
)	O
is	O
a	O
Mandatory	O
Access	O
Control	O
model	O
which	O
protects	O
the	O
integrity	O
of	O
system	O
objects	O
and	O
subjects	O
by	O
means	O
of	O
an	O
information	O
flow	O
policy	O
coupled	O
with	O
the	O
subject	O
demotion	O
via	O
floating	O
labels	O
.	O
</s>
<s>
In	O
LOMAC	B-Language
,	O
all	O
system	O
subjects	O
and	O
objects	O
are	O
assigned	O
integrity	O
labels	O
,	O
made	O
up	O
of	O
one	O
or	O
more	O
hierarchical	O
grades	O
,	O
depending	O
on	O
their	O
types	O
.	O
</s>
<s>
In	O
FreeBSD	B-Operating_System
,	O
the	O
Biba	O
model	O
is	O
implemented	O
by	O
the	O
mac_lomac	O
MAC	O
policy	O
.	O
</s>
<s>
In	O
Linux	B-Application
,	O
there	O
is	O
a	O
project	O
that	O
attempts	O
to	O
implement	O
LOMAC	B-Language
policy	O
.	O
</s>
