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Standards of Practice

Certification # 4200

National Association
of Certified Home Inspectors

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Your New Home With Peace Of Mind!
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Table of Contents
1.
Definitions
and Scope
2.
Standards of
Practice
2.1. Roof
2.2. Exterior
2.3. Basement, Foundation, Crawlspace & Structure
2.4. Heating
2.5. Cooling
2.6. Plumbing
2.7. Electrical
2.8. Fireplace
2.9. Attic & Insulation
2.10. Doors, Windows & Interior
3. Limitations, Exceptions & Exclusions
4. Glossary of Terms
1.1. A Home inspection is a
non-invasive visual examination of a residential
dwelling, performed for a fee, which is designed to
identify observed material defects within specific
components of said dwelling. Components may include any
combination of mechanical, structural, electrical,
plumbing, or other essential systems or portions of the
home, as identified and agreed to by the Client and
Inspector, prior to or during the inspection process.
I. A home inspection is intended
to assist in evaluation of the overall condition of
the dwelling. The inspection is based on observation
of the visible and apparent condition of the
structure and its components on the date of the
inspection and not the determination of future
conditions.
II. A home inspection will not
reveal every problem that exists or ever could
exist, but only those material defects observed on
the day of the inspection.
1.2. A Material defect is a problem
with a residential real property or any portion of it
that would have a significant adverse impact on the
value of the property or that involves an unreasonable
risk to people on the property. The fact that a
structural element, system or subsystem is near, at or
beyond the end of the normal useful life of such a
structural element, system or subsystem is not by itself
a material defect.
1.3. An Inspection report shall
describe and identify in written format the inspected
systems, structures, and components of the dwelling and
shall identify material defects observed. Inspection
reports may contain recommendations regarding conditions
reported or recommendations for correction, monitoring
or further evaluation by professionals.
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2.1.
Roof
I. The inspector shall inspect
from ground level or eaves:
A. The roof covering.
B. The gutters.
C. The downspouts.
D. The vents, flashings, skylights, chimney and
other roof penetrations.
E. The general structure of the roof from the
readily accessible panels, doors or stairs.
II. The inspector is not required
to:
A. Walk on any roof surface.
B. Predict the service life expectancy.
C. Inspect underground downspout diverter
drainage pipes.
D. Remove snow, ice, debris or other conditions
that prohibit the observation of the roof
surfaces.
E. Inspect antennae, lightning arresters, or
similar attachments.
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2.2.
Exterior
I. The inspector shall inspect:
A. The flashing and trim.
B. All exterior doors, decks, stoops, steps,
stairs, porches, railings, eaves, soffits,
fascias, grading, and walkways.
C. And report as in need of repair any spacings
between intermediate balusters, spindles, or
rails for steps, stairways, balconies, and
railings that permit the passage of an object
greater than four inches in diameter.
D. The vegetation, surface drainage and
retaining walls when these are likely to
adversely affect the building.
E. And describe the exterior wall covering.
II. The inspector is not required
to:
A. Inspect or operate screens,
storm windows, shutters, awnings, fences,
outbuildings, or exterior accent lighting.
B. Inspect items, including window and door
flashings, which are not visible or readily
accessible from the ground.
C. Inspect geological, geotechnical, or
hydrological conditions.
D. Inspect recreational facilities.
E. Inspect seawalls, break-walls and docks.
F. Inspect erosion control and earth
stabilization measures.
G. Inspect for safety type glass.
H. Inspect underground utilities.
I. Inspect underground items.
J. Inspect wells or springs.
K. Inspect solar systems.
L. Inspect swimming pools or spas.
M. Inspect septic systems or cesspools.
N. Inspect playground equipment.
O. Inspect sprinkler systems.
P. Inspect drain fields or drywells.
Q. Determine the integrity of the thermal window
seals or damaged glass.
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2.3.
Basement, Foundation & Crawlspace
I. The inspector shall inspect:
A. The basement.
B. The foundation
C. The crawlspace.
D. The visible structural components.
E. Any present conditions or indications of
active water penetration by probing a
representative sampling of structural components
where deterioration is believed to be present or
where clear indications of deterioration are
present.
F. And report any general indications of
foundation movement that are observed, such as
but not limited to sheetrock cracks, brick
cracks, out-of-square door frames or floor
slopes.
II. The inspector is not required
to:
A. Enter any crawlspaces that
are not readily accessible or where entry could
cause damage or pose a hazard to the inspector
in his or her opinion.
B. Move stored items or debris.
C. Operate sump pumps with inaccessible floats.
D. Identify size, spacing, span, location or
adequacy of foundation bolting, bracing, joists
or support systems.
E. Provide any engineering or architectural
service.
F. Report on the adequacy of any structural
system or component.
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2.4. Heating
I. The inspector shall inspect:
A. The heating system and
describe the energy source and heating method
using normal operating controls.
B. And report as in need of repair electric
furnaces which do not operate.
C. And report if inspector deemed the furnace
inaccessible.
II. The inspector is
not required to:
A. Inspect or evaluate
interiors of flues or chimneys, fire chambers,
the heat exchanger, the humidifier or
dehumidifier, the electronic air filter, solar
heating systems or fuel tanks.
B. Inspect underground fuel tanks.
C. Determine the uniformity, temperature, flow,
balance, distribution, size, capacity, BTU, or
supply adequacy of the heating system.
D. Light pilot flames.
E. Activate heating, heat pump systems, or other
heating systems when ambient temperatures or
other circumstances are not conducive to safe
operation or may damage the equipment.
F. Operate electronic thermostats.
G. Evaluate fuel quality.
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2.5.
Cooling
I. The inspector shall inspect:
A. The central cooling
equipment using normal operating controls.
II. The inspector is not required
to:
A. Determine the uniformity,
temperature, flow, balance, distribution, size,
capacity, BTU, or supply adequacy of the cooling
system.
B. Inspect window units, through-wall units, or
electronic air filters.
C. Operate equipment or systems if exterior
temperature is below 60 degrees Fahrenheit or
when other circumstances are not conducive to
safe operation or may damage the equipment.
D. Inspect or determine thermostat calibration,
heat anticipation or automatic setbacks or
clocks.
E. Examine electrical current, coolant fluids or
gasses, or coolant leakage.
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2.6.
Plumbing
I. The inspector shall:
A. Inspect the main water
shut off valve.
B. Inspect the water heating equipment,
including combustion air, venting,
connections, energy sources, seismic
bracing, and verify the presence or absence
of temperature-pressure relief valves and/or
Watts 210 valves.
C. Flush toilets.
D. Run water in sinks, tubs, and showers.
E. Inspect the interior water supply
including all fixtures and faucets.
F. Inspect the drain, waste and vent
systems, including all fixtures.
G. Describe any visible fuel storage
systems.
H. Inspect the drainage sump pumps testing
sumps with accessible floats.
I. Inspect and describe the water supply,
drain, waste and main fuel shut-off valves,
as well as the location of the water main
and main fuel shut-off valves.
J. Inspect and determine if the water supply
is public or private.
K. Inspect and report as in need of repair
deficiencies in the water supply by viewing
the functional flow in two fixtures operated
simultaneously.
L. Inspect and report as in need of repair
deficiencies in installation and
identification of hot and cold faucets.
M. Inspect and report as in need of repair
mechanical drain-stops that are missing or
do not operate if installed in sinks,
lavatories and tubs.
N. Inspect and report as in need of repair
commodes that have cracks in the ceramic
material, are improperly mounted on the
floor, leak, or have tank components which
do not operate.
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II. The inspector is not required
to:
A. Light pilot flames.
B. Determine the size, temperature, age,
life expectancy or adequacy of the water
heater.
C. Inspect interiors of flues or chimneys,
water softening or filtering systems, well
pumps or tanks, safety or shut-of valves,
floor drains or sprinkler systems.
D. Determine the exact flow rate, volume,
pressure, temperature, or adequacy of the
water supply.
E. Determine the water quality or potability
or the reliability of the water supply or
source.
F. Open closed plumbing access panels.
G. Inspect clothes washing machine
connections.
H. Operate any main, branch or fixture valve
except fixture faucets and hose faucets
attached to the building.
I. Test shower pans, tub and shower
surrounds or enclosures for leakage.
J. Evaluate the compliance with local or
state conservation or energy standards, or
the proper design or sizing of any water,
waste or venting components, fixtures or
piping.
K. Determine the effectiveness of
anti-siphon, back-flow prevention or
drain-stop devices.
L. Determine whether there are sufficient
clean-outs for effective cleaning of drains.
M. Evaluate gas, liquid propane or oil
storage tanks.
N. Excavate or otherwise uncover the private
sewage system or its components to determine
size, adequacy or efficiency.
O. Inspect water treatment systems or water
filters.
P. Inspect pressure pumps or bladder tanks.
Q. Evaluate time to
obtain hot water at fixtures, or perform
testing of any kind to water heater
elements.
R. Evaluate or determine
the adequacy of combustion air.
S. Test, operate, open or
close Watts 210 valves and/or TPR
valves.
T. Examine ancillary
systems or components, such as, but not
limited to, those relating to solar
water heating, hot water circulation.
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2.7.
Electrical
I. The inspector shall inspect:
A. The service line.
B. The meter box.
C. The main disconnect.
D. And determine the service amperage.
E. Panels, breakers and fuses.
F. The grounding.
G. The bonding.
H. A representative sampling of switches,
receptacles, light fixtures, and test all
GFCI receptacles and GFCI circuit breakers
observed and deemed to be GFCI's during the
inspection.
I. And report the presence of
solid conductor aluminum branch circuit
wiring if readily visible.
J. And report on any
GFCI-tested receptacles in which power is
not present, polarity is incorrect, the
receptacle is not grounded, is not secured
to the wall, the cover is not in place, the
ground fault circuit interrupter devices are
not properly installed or do not operate
properly, or evidence of arcing or excessive
heat is present.
K. The service entrance conductors
and the condition of their sheathing.
L. The ground fault circuit interrupters
with a GFCI tester.
M. And describe the amperage rating of the
service.
N. And report the absence of smoke
detectors.
O. Service entrance cables and report as in
need of repair deficiencies in the integrity
of the insulation, drip loop, or separation
of conductors at weatherheads and
clearances.
II. The inspector is not required
to:
A. Insert any tool, probe or
device into the main or sub-panels.
B. Operate electrical systems that are shut
down.
C. Remove panel covers or dead front covers if
not readily accessible.
D. Operate over current protection devices.
E. Operate non-accessible smoke detectors.
F. Measure or determine the amperage or voltage
of the main service if not visibly labeled.
G. Inspect the alarm system and components.
H. Inspect the ancillary wiring.
I. Activate any electrical systems or branch
circuits which are not energized.
J. Operate overload devices.
K. Inspect low voltage systems, electrical
de-icing tapes, swimming pool wiring or any
time-controlled devices.
L. Verify the continuity of the connected
service ground.
M. Inspect private or emergency electrical
supply sources, including but not limited to
generators, windmills, photovoltaic solar
collectors, or battery or electrical storage
facility.
N. Inspect spark or lightning arrestors.
O. Conduct drop voltage calculations.
P. Determine the accuracy of breaker labeling.
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2.8.
Fireplace
I. The inspector shall inspect:
A. The fireplace, and open and
close the damper door if readily accessible and
operable.
B. Hearth extensions and other permanently
installed components.
C. And report as in need of repair deficiencies
in the lintel, hearth and material surrounding
the fireplace, including clearance from
combustible materials
II. The inspector is not required
to:
A. Inspect the vent system.
B. Inspect the interior of the chimney or flue,
fire doors or screens, seals or mantels.
C. Determine the need for a chimney sweep.
D. Operate gas fireplace inserts.
E. Light pilot flames.
F. Determine the appropriateness of such
installation.
G. Inspect automatic fuel feed devices.
H. Inspect combustion make up devices.
I. Inspect heat distribution assists whether
gravity controlled or fan assisted.
J. Ignite or extinguish fires.
K. Determine draft characteristics.
L. Move fireplace inserts, stoves, or firebox
contents.
M. Determine adequacy of draft, perform a smoke
test or dismantle or remove any component.
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2.9.
Attic, Ventilation & Insulation
I. The inspector shall inspect:
A. The insulation in
unfinished spaces.
B. The ventilation of attic spaces.
C. Mechanical ventilation systems.
D. And report on the general absence or lack of
insulation.
II. The inspector is not required
to:
A. Enter the attic or
unfinished spaces that are not readily
accessible or where entry could cause damage or
pose a safety hazard to the inspector in his or
her opinion.
B. To move or touch insulation.
C. To move or touch vapor retarders.
D. Break or otherwise damage the surface finish
or weather seal on or around access panels and
covers.
E. Identify the composition or the exact R-value
of insulation material.
F. Activate thermostatically operated fans.
G. Determine the types of materials used in
insulation/wrapping of pipes, ducts, jackets,
boilers, and wiring.
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2.10.
Doors, Windows & Interior
I. The inspector shall:
A. Open and close a
representative number of doors and windows.
B. Inspect the walls, ceilings, steps,
stairways, and railings.
C. Inspect garage doors and garage door openers
by operating first by remote (if available) and
then by the installed automatic door control.
D. And report as in need of repair any installed
electronic sensors that are not operable or not
installed at proper heights above the garage
door.
E. And report as in need of repair any door
locks or side ropes that have not been removed
or disabled when garage door opener is in use.
F. And report as in need of repair any windows
that are obviously fogged or display other
evidence of broken seals.
II. The inspector is not required
to:
A. Inspect paint, wallpaper,
window treatments or finish treatments.
B. Inspect central vacuum systems.
C. Inspect safety glazing in locations subject
to human impact.
D. Inspect security components.
E. Evaluate the fastening of countertops,
cabinets, sink tops and fixtures, or firewall
compromises.
F. Move furniture, stored items, or any
coverings like carpets or rugs in order to
inspect the concealed floor structure.
G. Move drop ceiling tiles.
H. Inspect or move any household appliances.
I. Inspect or operate equipment housed in the
garage except as otherwise noted.
J. Verify or certify safe operation of any auto
reverse or related safety function of a garage
door.
K. Operate or evaluate security bar release and
opening mechanisms, whether interior or
exterior, including compliance with local,
state, or federal standards.
L. Operate any system, appliance or component
that requires the use of special keys, codes,
combinations, or devices.
M. Operate or evaluate self-cleaning oven cycles
or signal lights.
N. Determine leakage from microwave ovens.
O. Operate or examine any sauna, steam-jenny,
kiln, toaster, ice-maker, coffee-maker,
can-opener, bread-warmer, blender, instant hot
water dispenser, or other small, ancillary
devices.
P. Inspect elevators.
Q. Inspect remote controls.
R. Inspect appliances.
S. Inspect items not permanently installed.
T. Examine or operate any above-ground, movable,
freestanding, or otherwise non-permanently
installed pool/spa or self-contained equipment.
U. Come into contact with any pool or spa water
in order to determine the system structure or
components.
V. Determine the adequacy of spa jet water force
or bubble effect.
W. Determine the structural integrity or leakage
of a pool or spa.
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3.
Limitations,
Exceptions & Exclusions
3.1. Limitations:
I. An inspection is not
technically exhaustive.
II. An inspection will not identify concealed or
latent defects.
III. An inspection will not deal with aesthetic
concerns or what could be deemed matters of taste,
cosmetic, etc.
IV. An inspection will not determine the suitability
of the property for any use.
V. An inspection does not determine the market value
of the property or its marketability.
VI. An inspection does not determine the
advisability or inadvisability of the purchase of
the inspected property.
VII. An inspection does not determine the life
expectancy of the property or any components or
systems therein.
VIII. An inspection does not include items not
permanently installed.
IX. These Standards of Practice apply only to homes
with four or fewer dwelling units.
3.2. Exclusions:
I. The inspectors are not required
to determine:
A. Property boundary lines or
encroachments.
B. The condition of any component or system that
is not readily accessible.
C. The service life expectancy of any component
or system.
D. The size, capacity, BTU, performance, or
efficiency of any component or system.
E. The cause or reason of any condition.
F. The cause for the need of repair or
replacement of any system or component.
G. Future conditions.
H. The compliance with codes or regulations.
I. The presence of evidence of rodents, animals
or insects.
J. The presence of mold, mildew or fungus.
K. The presence of air-borne hazards.
L. The presence of birds.
M. The presence of other flora or fauna.
N. The air quality.
O. The existence of asbestos.
P. The existence of environmental hazards.
Q. The existence of electro-magnetic fields.
R. The presence of hazardous materials
including, but not limited to, the presence of
lead in paint.
S. Any hazardous waste conditions.
T. Any manufacturer recalls or conformance with
manufacturer installation or any information
included in the consumer protection bulletin.
U. Operating costs of systems.
V. Replacement or repair cost estimates.
W. The acoustical properties of any systems.
X. Estimates of how much it will cost to run any
given system.
II. The inspectors are not
required to operate:
A. Any system that is shut
down.
B. Any system that does not function properly.
C. Or evaluate low voltage electrical systems
such as, but not limited to:
1. Phone lines.
2. Cable lines.
3. Antennae.
4. Lights.
5. Remote controls.
D. Any system that does not turn on with the use
of normal operating controls.
E. Any shut off valve.
F. Any electrical disconnect or over current
protection devices.
G. Any alarm systems.
H. Moisture meters, gas detectors or similar
equipment.
III. The inspectors are not
required to:
A. Move any personal items or
other obstructions, such as, but not limited to:
1. Throw rugs.
2. Furniture.
3. Floor or wall coverings.
4. Ceiling tiles
5. Window coverings.
6. Equipment.
7. Plants.
8. Ice.
9. Debris.
10. Snow.
11. Water.
12. Dirt.
13. Foliage.
14. Pets
B. Dismantle, open, or uncover
any system or component.
C. Enter or access any area which may, in the
opinion of the inspector, to be unsafe or risk
personal safety.
D. Enter crawlspaces or other areas that are
unsafe or not readily accessible.
E. Inspect underground items such as, but not
limited to, underground storage tanks or other
indications of their presence, whether abandoned
or actively used.
F. Do anything which, in the inspector's
opinion, is likely to be unsafe or dangerous to
the inspector or others or damage property, such
as, but not limited to, walking on roof
surfaces, climbing ladders, entering attic
spaces or negotiating with dogs.
G. Inspect decorative items.
H. Inspect common elements or areas in
multi-unit housing.
I. Inspect intercoms, speaker systems,
radio-controlled, security devices or lawn
irrigation systems.
J. Offer guarantees or warranties.
K. Offer or perform any engineering services.
L. Offer or perform any trade or professional
service other than home inspection.
M. Research the history of the property, report
on its potential for alteration, modification,
extendibility, or its suitability for a specific
or proposed use for occupancy.
N. Determine the age of construction or
installation of any system structure, or
component of a building, or differentiate
between original construction or subsequent
additions, improvements, renovations or
replacements thereto.
O. Determine the insurability of a property.
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4.1. Accessible: Can be approached or
entered by the inspector safely, without difficulty,
fear or danger.
4.2. Activate: To turn on, supply
power, or enable systems, equipment, or devices to
become active by normal operating controls. Examples
include turning on the gas or water supply valves to the
fixtures and appliances and activating electrical
breakers or fuses.
4.3. Adversely Affect: Constitute, or
potentially constitute, a negative or destructive
impact.
4.4. Alarm System: Warning devices,
installed or free-standing, including but not limited
to: Carbon monoxide detectors, flue gas and other
spillage detectors, security equipment, ejector pumps
and smoke alarms.
4.5. Appliance: A household device
operated by use of electricity or gas. Not included in
this definition are components covered under central
heating, central cooling or plumbing.
4.6. Architectural Service: Any
practice involving the art and science of building
design for construction of any structure or grouping of
structures and the use of space within and surrounding
the structures or the design, design development,
preparation of construction contract documents, and
administration of the construction contract.
4.7. Component: A permanently
installed or attached fixture, element or part of a
system.
4.8. Condition: The visible and
conspicuous state of being of an object.
4.9. Crawlspace: The area within the
confines of the foundation and between the ground and
the underside of the lowest floor structural component.
4.10. Decorative: Ornamental; not
required for the operation of essential systems and
components of a home.
4.11. Describe: Report in writing a
system or component by its type, or other observed
characteristics, to distinguish it from other components
used for the same purpose.
4.12. Determine: To arrive at an
opinion or conclusion pursuant to examination.
4.13. Dismantle: To open, take apart
or remove any component, device or piece that would not
typically be opened, taken apart or removed by an
ordinary occupant.
4.14. Engineering Service: Any
professional service or creative work requiring
engineering education, training, and experience and the
application of special knowledge of the mathematical,
physical and engineering sciences to such professional
service or creative work as consultation, investigation,
evaluation, planning, design and supervision of
construction for the purpose of assuring compliance with
the specifications and design, in conjunction with
structures, buildings, machines, equipment, works or
processes.
4.15. Enter: To go into an area to
observe all visible components.
4.16. Evaluate: To assess the systems,
structures or components of a dwelling.
4.17. Examine: To visually look. See
Inspect.
4.18. Foundation: The base upon which
the structure or wall rests; usually masonry, concrete,
or stone, and generally partially underground.
4.19. Function: The action for which
an item, component, or system is specially fitted or
used or for which an item, component or system exists;
to be in action or perform a task.
4.20. Functional: Performing, or able
to perform, a function.
4.21. Home Inspection: The process by
which an inspector visually examines the readily
accessible systems and components of a home and operates
those systems and components utilizing these Standards
of Practice as a guideline.
4.22. Household Appliances: Kitchen
and laundry appliances, room air conditioners, and
similar appliances.
4.23. Inspect: To visually look at
readily accessible systems and components safely, using
normal operating controls and accessing readily
accessible panels and areas.
4.24. Inspected Property: The readily accessible areas
of the buildings, site, items, components, and systems
included in the inspection.
4.25. Inspector: One who performs a
real estate inspection.
4.26. Installed: Attached or connected
such that the installed item requires tool for removal.
4.27. Material Defect: Refer to
section 1.2.
4.28. Normal Operating Controls:
Devices such as thermostats that would be operated by
ordinary occupants which require no specialized skill or
knowledge.
4.29. Observe: To see through visually
directed attention.
4.30. Operate: To cause systems to
function or turn on with normal operating controls.
4.31. Readily Accessible: An item or
component is readily accessible if, in the judgment of
the inspector, it is capable of being safely observed
without movement of obstacles, detachment or
disengagement of connecting or securing devices, or
other unsafe or difficult procedures to gain access.
4.32. Recreational Facilities: Spas,
saunas, steam baths, swimming pools, tennis courts,
playground equipment, and other exercise, entertainment
or athletic facilities.
4.33. Report: A written communication
(possibly including digital images) of any material
defects seen during the inspection.
4.34. Representative Number: A
sufficient number to serve as a typical or
characteristic example of the item(s) inspected.
4.35. Safety Glazing: Tempered glass,
laminated glass, or rigid plastic.
4.36. Shut Down: Turned off,
unplugged, inactive, not in service, not operational,
etc.
4.37. Structural Component: A
component which supports non-variable forces or weights
(dead loads) and variable forces or weights (live
loads).
4.38. System: An assembly of various
components to function as a whole.
4.39. Technically Exhaustive: A
comprehensive and detailed examination beyond the scope
of a real estate home inspection which would involve or
include, but would not be limited to: dismantling,
specialized knowledge or training, special equipment,
measurements, calculations, testing, research, analysis
or other means.
4.40. Unsafe: A condition in a readily
accessible, installed system or component which is
judged to be a significant risk of personal injury
during normal, day-to-day use. The risk may be due to
damage, deterioration, improper installation or a change
in accepted residential construction standards.
4.41. Verify: To confirm or
substantiate.
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