2015 New York Safe Boating - 26

FUELING AND VENTILATION

either into the atmosphere outside the boat or into another
ventilated	space	near	an	opening	or	cowling.		The	exhaust	
faces aft near the stern of the boat.

The	components	of	a	mechanical	blower	utilize	an	exhaust	
fan	mounted	within	the	exhaust	ducting	of	a	natural	
ventilation system and a switch located at the steering or
helm station. A powered ventilation system is significantly
more effective than natural ventilation, especially when the
boat is not moving. All boats with mechanical blowers must
have	the	following	warning	label	next	to	the	switch:

In New York State, natural ventilation isn't required on
boats of open construction having no enclosed spaces
or compartments. Natural ventilation is required for any
compartment on a boat that contains:

	a gasoline engine including generators,
	a fuel tank that vents to that compartment (i.e. a

WARNING: Gasoline vapors can explode. Before
starting engine operate blower for 4 minutes and
check engine compartment bilge for gasoline vapors.

portable tank), or

	a permanently installed fuel tank and any electrical

The law didn't require boats built prior to 1980 to have a
powered ventilation system; however, some boats that were
manufactured then had powered ventilation. The US Coast
Guard	Ventilation	Standard,	a	manufacturer	requirement,	
applies to all boats built on or after August 1, 1980. So if your
boat was built on or after August 1, 1980 and if your boat
bears a label containing the words "This boat complies with
US Coast Guard safety standards," etc., you can assume that
the design of your boat's ventilation system meets applicable
regulations.

component that is not ignition protected.

Mechanical Blower
A mechanical blower removes vapors from bilges and
enclosed	compartments	and	exhausts	them	overboard.		
Federal construction standards require a permanently
installed mechanical blower (power ventilation system) in
each compartment on a boat that was built after August 1,
1980 that contains a permanently installed gasoline engine
with a cranking motor or starter. A mechanical blower is not
needed if compartments are of open construction or open to
the atmosphere.

Boat owners are responsible for keeping their boat's ventilation
systems in operating condition. Check frequently to make
sure that openings are free of obstructions, ducts are not
blocked or torn, and blowers operate properly. Replace worn
components with equivalent marine type equipment.

Review Questions
1.

At the fuel dock, list several safe fueling practices? _____________________________________________________
________________________________________________________________________________________________

2.

Why should you keep the nozzle of the fill hose in contact with the tank or fill opening? _____________________
_________________________________________________________________________________________________

3.	

After	fueling,	explain	several	safety	practices?	__________________________________________________________	
_________________________________________________________________________________________________

4.	
_

How	long	should	the	blower	run	before	starting	an	inboard	engine?	____________________________________________
_________________________________________________________________________________________________
_________________________________________________________________________________________________
Answers on page 82

26


http://www.uscgboating.org/library/boating-safety-circulars/BSC69.pdf#vent http://www.uscgboating.org/library/boating-safety-circulars/BSC69.pdf#vent

2015 New York Safe Boating

Table of Contents for the Digital Edition of 2015 New York Safe Boating

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2015 New York Safe Boating - Cover2
2015 New York Safe Boating - Contents
2015 New York Safe Boating - 1
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