267/ Navigation and Watch Keeping / 992
Na
v
i
g
ation and
W
atc
h
Kee
p
in
g
BOS-
P
RD-2
6
.900
5
02
4 D
escri
p
tion
4
.1
O
r
g
anisation o
f
t
h
e
b
rid
g
e
w
atc
h
W
hen ass
i
g
n
i
n
g
the nav
i
g
at
i
ona
l
w
atch
,
the
fo
ll
o
w
i
n
g
factors
shall
be
ta
k
en
i
nto
cons
i
derat
i
on:
x
T
he
k
no
w
l
ed
g
e
and
s
kill
s
of
sh
i
p
board
off
i
cers
and
cre
w
;
rat
i
n
g
s
form
i
n
g
p
art
of
the
nav
i
g
at
i
ona
l
w
atch
should
be
cert
i
f
i
ed
accord
i
n
g
l
y
;
x
E
x
p
er
i
ence
of
the
Brid
g
e
W
atc
h
Off
icers
and
the
i
r
fam
ili
ar
i
ty
w
i
th
sh
i
p
board
p
rocedures
and
the
manoeuvr
i
n
g p
erformance of
the
vesse
l;
x
O
n
g
o
i
n
g
and
any other
vesse
l
act
i
v
i
ty
i
nc
l
ud
i
n
g
act
i
v
i
t
i
es
i
nvo
l
v
i
n
g
rad
i
o
commun
i
cat
i
ons
;
x
A
ny
p
resent
or
e
x
p
ected
unusua
l
demands
on
the
nav
i
g
at
i
ona
l
w
atch
that
may
ar
i
se
because
of
s
p
ec
i
a
l
o
p
erat
i
ona
l
c
i
rcumstances
;
x
T
he
or
g
an
i
sat
i
on
of
the
nav
i
g
at
i
ona
l
w
atch
i
s
to
be made
u
p
so
that
fat
i
g
ue
/
t
i
redness
do
not
affect
the dut
i
es
of
the
Brid
g
e
W
atc
h Off
icer
or
ass
i
g
ned
l
oo
k
outs
;
x
P
resent
and
e
x
p
ected
v
i
s
i
b
ili
ty
(i
nc
l
ud
i
n
g
hours
of
dar
k
ness
)
sea
state
and
other
w
eather
cond
i
t
i
ons
are
to
be
assessed
and mon
i
tored
at
a
ll
t
i
mes
dur
i
n
g
the
nav
i
g
at
i
ona
l
w
atch
. T
he
w
atch
should
be
re
i
nforced as
re
q
u
i
red
;
x
P
resent
and
e
x
p
ected
traff
i
c
dens
i
ty
i
s
to
be
assessed
and mon
i
tored
at
a
ll
t
i
mes
dur
i
n
g
the
nav
i
g
at
i
ona
l
w
atch
. T
he
w
atch
should
be
re
i
nforced as
re
q
u
i
red
;
x
A
ttent
i
on
should
be
g
i
ven
to
any
s
i
tuat
i
ons
ar
i
s
i
n
g
that may ma
k
e
i
t
necessary
for
the
Brid
g
e
W
atc
h
Off
icer
to
carry
out
add
i
t
i
ona
l
nav
i
g
at
i
ona
l
dut
i
es
w
hen
nav
i
g
at
i
n
g
w
i
th
i
n
or
near
traff
i
c
se
p
arat
i
on
schemes
,
offshore
o
il
f
i
e
l
ds
and
the
p
ro
xi
m
i
ty
of
other
nav
i
g
at
i
ona
l
hazards
. S
hou
l
d any
such
occas
i
on ar
i
se
,
add
i
t
i
ona
l
Brid
g
e
W
atc
h Off
icer
(
s
)
should
be
p
osted
i
n
g
ood
t
i
me beforehand
;
x
T
he
o
p
erat
i
ona
l
cond
i
t
i
on
of
nav
i
g
at
i
ona
l
a
i
ds
such
as
auto
p
il
ot
,
radars
, G
P
S
and
any
other
e
q
u
i
p
ment
affect
i
n
g
nav
i
g
at
i
ona
l
safety
should
be
mon
i
tored
re
g
u
l
ar
l
y
to
determ
i
ne
o
p
erat
i
ona
l
funct
i
ona
li
ty
.
x
O
ff
i
cer
on
w
atch
i
s
res
p
ons
i
b
l
e
to
f
ill
u
p
the
B
r
i
d
g
e
l
o
g
boo
k,
w
h
i
ch
i
s
an
off
i
c
i
a
l
document
.
4
.
2
Brid
g
e
w
atc
h m
annin
g
B
r
i
d
g
e or
g
an
i
sat
i
on
and mann
i
n
g
of
the br
i
d
g
e
rema
i
ns
the
fu
ll
res
p
ons
i
b
ili
ty of
the
Master
,
w
ho
, i
n
any
g
i
ven
s
i
tuat
i
on
can
chan
g
e
the
mann
i
n
g/
or
g
an
i
sat
i
on
to
h
i
s
/
her sat
i
sfact
i
on
. R
out
i
ne
nav
i
g
at
i
on
w
i
th
m
i
n
i
mum
traff
i
c
dens
i
ty and no
s
p
ec
i
a
l
c
i
rcumstances
(
e
.
g
.
dur
i
n
g
an
ocean
/
dee
p
sea
p
assa
g
e
)
may
be
conducted
w
i
th
a
s
i
n
g
l
e
Brid
g
e
W
atc
h
Off
icer
and
a
l
oo
k
out
. D
ur
i
n
g
day
li
g
ht
w
atch
,
a
s
i
n
g
l
e
Brid
g
e
W
atc
h
Off
icer
may
be
author
i
zed
p
rov
i
d
i
n
g
that
the
BN
A
WS i
s
act
i
vated
.
U
nder
these
c
i
rcumstances
,
the
use
of
auto
p
il
ot
i
s
p
erm
i
tted
w
i
th
the
Masters
a
pp
rova
l.
I
n
a
ll
other
nav
i
g
at
i
ona
l
s
i
tuat
i
ons
and
c
i
rcumstances
, i
n
add
i
t
i
on
to
the
p
ersonna
l
descr
i
bed
above
,
the
br
i
d
g
e
shall
be manned accord
i
n
g
to
the
Master Standing Orders
.
R
at
i
n
g
s
form
i
n
g p
art
of
the
nav
i
g
at
i
ona
l
w
atch
should
be
cert
i
f
i
ed accord
i
n
g
l
y
.
4
.
3
Na
v
i
g
ational
w
atc
h
k
ee
p
in
g
T
he
sh
i
p
shall
be nav
i
g
ated safe
l
y
i
n
com
p
li
ance
w
i
th
the
COLREGS
at
a
ll
t
i
me
.
Brid
g
e
W
atc
h
Off
icers
are
accountab
l
e
to
the
Master
for
com
p
li
ance
of
a
ll
nav
i
g
at
i
ona
l
w
atch
k
ee
p
i
n
g
e
x
p
ectat
i
ons
,
re
q
u
i
rements
and
dut
i
es
. T
h
i
s
p
rocedure
shall
a
pp
l
y
i
n
a
ll
c
i
rcumstances
,
e
.
g
:
to
o
p
en
sea
w
ays
,
coasta
l
nav
i
g
at
i
on
,
restr
i
cted
v
i
s
i
b
ili
ty
,
sha
ll
o
w w
ater
,
heavy
w
ater
and
w
atch
k
ee
p
i
n
g
i
n
p
ort
.
V
ers
i
on
S
F
(BOS-
P
RD-0
7
.900
5
02-
ver
.0
4
). O
r
i
g
i
na
l
date:
0
1/
0
6
/
20
1
2.
V
ers
i
on
date:
31/1
2
/
20
1
5
.
V
a
li
d
vers
i
on
on
l
y
on QM
S
s
i
te
.
U
ncontro
ll
ed
document
w
hen
p
r
i
nted
.
P
rocedure
p
re
p
ared by:
BOS
Head
of
O
p
erat
i
ons
.
App
roved
by:
BOS
Head
of
O
p
erat
i
ons
.
V
a
li
dated by:
BOS
Qua
li
ty
R
e
p
resentat
i
ve
.
5
/ 1
7
267