OAR 250-010-0125
Ventilation

Pursuant to ORS 830.240 (Ventilation systems), the following ventilation system standards shall apply to all boats:

(1)

Powered ventilation (applicable to boats constructed after July 31, 1980 that utilize a gasoline engine for electrical generation, mechanical power or propulsion):

(a)

Each compartment in a boat that has a permanently installed gasoline engine with a cranking motor must:

(A)

Be open to the atmosphere; or

(B)

Be ventilated by an exhaust blower system.

(b)

Each exhaust blower or combination of blowers must be rated at an air flow capacity not less than that computed by the formulas given in Table 1 — Column 2. Blower rating must be determined according to AMCA Standard 210-74, Figure 12, dated 1974, or UL Standard 1128 dated August 23, 1977;

(c)

Each exhaust blower system required by paragraph (1)(a)(B) of this rule must exhaust air from the boat at a rate which meets the requirements of Table 1 — Column 3 when the engine is not operating;

(d)

Each intake duct for an exhaust blower must be in the lower one-third of the compartment and above the normal level of accumulated bilge water;

(e)

More than one exhaust blower may be used in combination to meet these requirements;

(f)

Each boat that is required to have an exhaust blower must have a label that:

(A)

Is located as close as practicable to each ignition switch;

(B)

Is in plain view of the operator; and

(C)

Has at least the following information:
WARNING — GASOLINE VAPORS CAN EXPLODE. BEFORE STARTING ENGINE OPERATE BLOWER FOR 4 MINUTES AND CHECK ENGINE COMPARTMENT BILGE FOR GASOLINE VAPORS.

(2)

Natural ventilation system:

(a)

Except for compartments open to the atmosphere, a natural ventilation system that meets the requirements of paragraphs (2)(c)(A) and (B) of this rule must be provided for each compartment in a boat that:

(A)

Contains a permanently installed gasoline engine;

(B)

Has openings between it and a compartment that requires ventilation where the aggregate area of those openings exceeds two percent of the area between the compartments;

(C)

Contains a permanently installed fuel tank and an electrical component that is not ignition protected in accordance with existing U.S. Coast Guard regulations;

(D)

Contains a fuel tank that vents into that compartment; or

(E)

Contains a non-metallic fuel tank with an aggregate permeability rate of more than the greater of 1.2 grams of fuel loss in 24 hours, or 1.2 grams of fuel loss in 24 hours per cubic foot of net compartment volume (Permeability Rate — reference: fuel “C” at 40° C. plus or minus 2° C. from ASTM Standard D-241, dated April 1975).

(b)

Each natural ventilation system must be constructed so that:

(A)

Each supply opening required is forward facing and located on the exterior surface of a boat; or

(B)

Air flow will occur into or out of the supply or exhaust openings when the boat is in a wind flowing from bow to stern at a velocity of ten miles per hour (boat’s engine not operating).

(c)

For the purpose of this section “natural ventilation” means an airflow in a boat compartment achieved by having:

(A)

A supply opening or duct from the atmosphere or from a ventilated compartment or from a compartment that is open to the atmosphere; and

(B)

An exhaust opening into another ventilated compartment or an exhaust duct to the atmosphere.

(d)

Each exhaust opening or exhaust duct must originate in the lower third of the compartment;

(e)

Each supply opening or supply duct and each exhaust opening or exhaust duct in a compartment must be located above the normal accumulation of bilge water.
NOTE: Except as provided in subsection (f) of this section, supply openings or supply ducts and exhaust opening or exhaust ducts must each have a minimum aggregate internal cross-sectional area calculated as follows: A = 5 in. (V/5): where:

(A)

“A” is the minimum aggregate internal cross-sectional area of the openings or ducts in square inches;

(B)

“V” is the net compartment volume in cubic feet, including the net volume of other compart-ments connected by openings that exceed two percent of the area between the compartments; and

(C)

In (V/5) is the natural logarithm of the quantity (V/5).

(f)

The minimum internal cross-sectional area of each supply opening or duct and exhaust opening or duct must exceed 3.0 square inches;

(g)

The minimum internal cross-sectional area of terminal fittings for flexible ventilation ducts installed to meet the requirements of subsection (2)(d) of this rule must not be less than 80 percent of the required internal cross-sectional area of the flexible ventilation duct.

(3)

Nothing in this rule shall apply to:

(a)

Boats of open construction having at least 15 square inches of open area directly exposed to the atmosphere for each cubic foot of net compartment volume;

(b)

An accommodation compartment above a compartment requiring ventilation that is separated from the compartment requiring ventilation by a deck or other structure.
[ED. NOTE: Tables & Publications referenced are available from the agency]

Source: Rule 250-010-0125 — Ventilation, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=250-010-0125.

250‑010‑0010
Definitions 250‑010‑0025
Basic Rule for “Slow–No Wake” 250‑010‑0030
Application for Certificate of Number and Title 250‑010‑0040
Oregon Boat Numbering System 250‑010‑0051
Definition of “Operate” and “Otherwise Use a Boat on Water” 250‑010‑0053
Safety Inspections 250‑010‑0055
Certificates of Boat Title 250‑010‑0058
Refunds 250‑010‑0059
Reinstatement Fee 250‑010‑0060
Report of Transfer, Abandonment or Wrecking of a Boat, Change of Address, Late Penalty Fees 250‑010‑0065
County Use Permit Programs 250‑010‑0075
Boating Safety/Education Assistance Program 250‑010‑0085
Capacity Plates 250‑010‑0095
Application for Marine Events 250‑010‑0097
Application for Special Use Device Permits 250‑010‑0110
Investigation of Accidents 250‑010‑0121
Mufflers 250‑010‑0122
Carburetors 250‑010‑0125
Ventilation 250‑010‑0150
Exemptions 250‑010‑0152
Use of Sirens Prohibited by Other Than Expressly Authorized Peace Officers 250‑010‑0154
Personal Flotation Devices 250‑010‑0155
Fire Extinguishers 250‑010‑0156
Sound Signaling Appliances 250‑010‑0160
Board Not to Approve Products of Manufacturers 250‑010‑0164
Visual Distress Signals 250‑010‑0201
Uniform Waterway Marking System 250‑010‑0206
Waterway Marker Permits Required and Exemptions 250‑010‑0215
Application for Waterway Marker Permit 250‑010‑0225
Waterway Marker Placement Conditions 250‑010‑0230
Transfer of Ownership of Waterway Markers 250‑010‑0235
Discontinuance and Removal of Waterway Markers 250‑010‑0240
Characteristics of Waterway Markers 250‑010‑0245
Buoy Standards 250‑010‑0255
Sign Standards 250‑010‑0260
Standards for Letter or Numeral Elements of Markers 250‑010‑0265
Standards for Mooring Buoys 250‑010‑0270
Standards for Swim Area Markers 250‑010‑0275
The “Divers” Flag 250‑010‑0300
Floating Home/Boathouse Registration and Titling 250‑010‑0310
Certificate of Registration and Title for a Floating Home or Boathouse 250‑010‑0320
Oregon Floating Home/Boathouse Registration Numbering System 250‑010‑0325
Report of Transfer, Abandonment, or Wrecking of Floating Home/Boathouse or Change of Address 250‑010‑0410
Definitions 250‑010‑0420
Officer Report 250‑010‑0430
Chemical Analyses 250‑010‑0440
Qualifications and Training of Breath Test Equipment Operators 250‑010‑0470
Breath Testing Equipment Approval 250‑010‑0500
Offender Education Program Administration 250‑010‑0510
Definitions 250‑010‑0520
Content 250‑010‑0530
Implementation 250‑010‑0540
Fees 250‑010‑0550
Qualified Courses 250‑010‑0560
Completion Certificate 250‑010‑0650
Aquatic Invasive Species Prevention Permit 250‑010‑0660
Watercraft Inspection Stations 250‑010‑0700
Flotation Encapsulation Rules 250‑010‑0705
Materials and Methods of Encapsulation 250‑010‑0710
Existing Structures 250‑010‑0715
Buoys and Other Floating Devices 250‑010‑0750
Marine Sanitation Device Requirements 250‑010‑0760
Waterway Access Permit 250‑010‑0800
Livery Registration
Last Updated

Jun. 8, 2021

Rule 250-010-0125’s source at or​.us