International Association Of Lighthouse Authorities System B (Iala-B); Lateral Markers; Safe Water Markers; The Uniform State Waterway Marking System - Scarab jet boat Owenrs Manual

NEVER tie your vessel to an ATON. It is illegal
boaters. Decreased visibility can contribute to
a serious accident which may result in property
damage, personal injury, or death.
There are two ATON systems. The system used on
federal waters is known as the International Associa-
tion of Lighthouse Authorities System B (IALA-B). The
US Coast Guard maintains this system. The second
system is the Uniform State Waterway Marking Sys-
tem (USWMS). This system is maintained by state
authorities.
1. International Association of Lighthouse
Authorities System B (IALA-B)
IALA-B uses four types of ATONS. This section dis-
ers and safe water markers. Other federal markers
include special markers and isolated danger markers.
The Navigational Aids Chart at the end of this manual
shows these aids.

2. Lateral Markers

Lateral markers indicate the sides of navigable chan-
nels. They consist of lighted can or nun buoys and
daymarks. Each has a number and is either red or
green. The numbers on the green markers are odd.
Red markers have even numbers.
they have either red or green lights. Unlighted green
buoys, called cans, look like cylinders. Unlighted red
nun buoys have a cone shaped top with their points
cut off. Do not pass too close to a buoy. You may foul
the jet nozzle in its chain.
NOTICE
not always be in exactly the same position.
Daymarks are red or green boards with numbers.
They are on posts or groups of pilings tied together
and called dolphins. Daymarks and their supports
are daybeacons. Daybeacons may or may not have
lights. If a red or green daybeacon has a light, it is the
same color as the marker-red or green. Red daymarks
are triangular and have even numbers. Green day-
marks are square and have odd numbers.
Boating Safety & Information - Section A
Red Right Returning is a basic rule to assist you in
using lateral markers. When you are returning from
seaward, keep red markers on the starboard (right)
side when you pass them. Keep green markers to the
port side.
Returning from seaward is very clear if you have been
on the ocean. You are returning to port. By agree-
ment, going upstream on a navigational river is return-
ing from seaward. The outlet ends of the Great Lakes
are also the seaward ends. Traveling from a large
body of water to a smaller one is considered returning
from seaward.

3. Safe Water Markers

Safe water markers have vertical red and white stripes
and mark the center of navigable channels and fair-
ways. Safe water markers included both lighted and
unlighted buoys and daymarks. If a marker is lighted,
-
Code.
Preferred Channel markers have horizontal red and
green bands. If lighted, the color of the light is the
same as the top of the band. They show the preferred
channel for you to use at a junction point. Be sure to
notice the color of the top of the band, and treat it as
any other marker you would of that color.
If the band is red and you are returning from seaward,
keep the marker to the right.
help you identify the light at night. To identify a light,

4. The Uniform State Waterway Marking System

This section discusses three kinds of markers in this
Regulatory markers in this system are either signs or
buoys. Signs are square with orange borders. Regula-
tory buoys are white and shaped like cylinders. They
have horizontal orange bands near their tops and
just above the water's surface. An orange circle on a
marker means a controlled area. A message such as
Owner's Manual Page 33