866
49 CFR Ch. I (10–1–23 Edition)
§ 175.88
(c) Instructions for using the Seg-
regation Table are as follows:
(1) Hazard labels, classes or divisions
not shown in the table are not subject
to segregation requirements.
(2) Dots at the intersection of a row
and column indicate that no restric-
tions apply.
(3) The letter ‘‘X’’ at the intersection
of a row and column indicates that
packages containing these classes of
hazardous materials may not be stowed
next to or in contact with each other,
or in a position which would allow
interaction in the event of leakage of
the contents.
(4) Note 1. ‘‘Note 1’’ at the intersec-
tion of a row and column means the
following:
(i) Only Division 1.4, Compatibility
Group S, explosives are permitted to be
transported aboard a passenger air-
craft. Only certain Division 1.3, Com-
patibility Groups C and G, and Division
1.4, Compatibility Groups B, C, D, E, G
and S, explosives may be transported
aboard a cargo aircraft.
(ii) Division 1.4 explosives in Compat-
ibility Group S may be stowed with Di-
vision 1.3 and 1.4 explosives in compat-
ibility groups as permitted aboard air-
craft under paragraph (c)(4)(i) above.
(iii) Except for Division 1.4B explo-
sives and as otherwise provided in this
Note, explosives of different compat-
ibility groups may be stowed together
whether or not they belong to the same
division. Division 1.4B explosives must
not be stowed together with any other
explosive permitted aboard aircraft ex-
cept Division 1.4S, unless segregated as
prescribed in paragraph (c)(4)(iv) of
this section (‘‘Note 1’’).
(iv) Division 1.4B and Division 1.3 ex-
plosives may not be stowed together.
Division 1.4B explosives must be loaded
into separate unit load devices and,
when stowed aboard the aircraft, the
unit load devices must be separated by
other cargo with a minimum separa-
tion of 2 m (6.5 feet). When not loaded
in unit load devices, Division 1.4B and
Division 1.3 explosives must be loaded
into different, non-adjacent loading po-
sitions and separated by other cargo
with a minimum separation of 2 m (6.5
feet).
(5) Note 2. ‘‘Note 2’’ at the intersec-
tion of a row and column means that
other than explosives of Division 1.4,
Compatibility Group S, explosives may
not be stowed together with that class.
(6) Packages containing hazardous
materials with multiple hazards in the
class or divisions, which require seg-
regation in accordance with the Seg-
regation Table, need not be segregated
from other packages bearing the same
UN number.
(7) A package labeled ‘‘BLASTING
AGENT’’ may not be stowed next to or
in a position that will allow contact
with a package of special fireworks or
railway torpedoes.
(8) Note 3. ‘‘Note 3’’ at the intersec-
tion of a row and column means that
UN 3528, Engines, internal combustion,
flammable liquid powered; Engines,
fuel cell, flammable liquid powered;
Machinery internal combustion, flam-
mable liquid powered; and Machinery,
fuel cell, flammable liquid powered
need not be segregated from packages
containing dangerous goods in Division
5.1.
[71 FR 14604, Mar. 22, 2006, as amended at 71
FR 54396, Sept. 14, 2006; 71 FR 78634, Dec. 29,
2006; 76 FR 3384, Jan. 19, 2011; 85 FR 27899,
May 11, 2020]
§ 175.88
Inspection, orientation and se-
curing packages of hazardous mate-
rials.
(a) A unit load device may not be
loaded on an aircraft unless the device
has been inspected and found to be free
from any evidence of leakage from, or
damage to, any package containing
hazardous materials.
(b) A package containing hazardous
materials marked ‘‘THIS SIDE UP’’ or
‘‘THIS END UP’’, or with arrows to in-
dicate the proper orientation of the
package, must be stored and loaded
aboard an aircraft in accordance with
such markings. A package without ori-
entation markings containing liquid
hazardous materials must be stored
and loaded with top closure facing up-
ward.
(c) Packages containing hazardous
materials must be:
(1) Secured in an aircraft in a manner
that will prevent any shifting or
change in the orientation of the pack-
ages;
867
Pipeline and Haz. Matls. Safety Admin., DOT
§ 175.310
(2) Protected from being damaged, in-
cluding by the shifting of baggage,
mail, stores, or other cargo;
(3) Loaded so that accidental damage
is not caused through dragging or mis-
handling; and
(4) When containing Class 7 (radio-
active) materials, secured in a manner
that ensures that the separation re-
quirements of §§ 175.701 and 175.702 will
be maintained at all times during
flight.
[71 FR 14604, Mar. 22, 2006, as amended at 83
FR 52900, Oct. 18, 2018]
§ 175.90
Damaged shipments.
(a) Packages or overpacks containing
hazardous materials must be inspected
for damage or leakage after being un-
loaded from an aircraft. When pack-
ages or overpacks containing haz-
ardous materials have been transported
in a unit load device, the area where
the unit load device was stowed must
be inspected for evidence of leakage or
contamination immediately upon re-
moval of the unit load device from the
aircraft, and the packages or overpacks
must be inspected for evidence of dam-
age or leakage when the unit load de-
vice is unloaded. In the event of leak-
age or suspected leakage, the compart-
ment in which the package, overpack,
or unit load device was carried must be
inspected for contamination and decon-
taminated, if applicable.
(b) Except as provided in § 175.700, the
operator of an aircraft must remove
from the aircraft any package, baggage
or cargo that appears to be leaking or
contaminated by a hazardous material.
In the case of a package, baggage or
cargo that appears to be leaking, the
operator must ensure that other pack-
ages, baggage or cargo in the same
shipment are in proper condition for
transport aboard the aircraft and that
no other package, baggage or cargo has
been contaminated or is leaking. If an
operator becomes aware that a pack-
age, baggage or cargo not identified as
containing a hazardous material has
been contaminated, or the operator has
cause to believe that a hazardous mate-
rial may be the cause of the contami-
nation, the operator must take reason-
able steps to identify the nature and
source of contamination before pro-
ceeding with the loading of the con-
taminated baggage or cargo. If the con-
taminating substance is found or sus-
pected to be hazardous material, the
operator must isolate the package,
baggage or cargo and take appropriate
steps to eliminate any identified haz-
ard before continuing the transpor-
tation of the item by aircraft.
(c) No person may place aboard an
aircraft a package, baggage or cargo
that is contaminated with a hazardous
material or appears to be leaking.
(d) If a package containing a mate-
rial in Division 6.2 (infectious sub-
stance) is found to be damaged or leak-
ing, the person finding the package
must:
(1) Avoid handling the package or
keep handling to a minimum;
(2) Inspect packages adjacent to the
leaking package for contamination and
withhold from further transportation
any contaminated packages until it is
ascertained that they can be safely
transported;
(3) Comply with the reporting re-
quirement of §§ 171.15 and 175.31 of this
subchapter; and
(4) Notify the consignor or consignee.
Subpart C—Specific Regulations
Applicable According to
Classification of Material
§ 175.310
Transportation of flammable
liquid fuel; aircraft only means of
transportation.
(a) When other means of transpor-
tation are impracticable, flammable
liquid fuels may be carried on certain
passenger and cargo aircraft as pro-
vided in this section, without regard to
the packaging references and quantity
limits listed in Columns 7, 8 and 9 of
the § 172.101 Hazardous Materials Table.
All requirements of this subchapter
that are not specifically covered in this
section continue to apply to shipments
made under the provisions of this sec-
tion. For purposes of this section ‘‘im-
practicable’’ means transportation is
not physically possible or cannot be
performed by routine and frequent
means of other transportation, due to
extenuating circumstances. Extenu-
ating circumstances include: condi-
tions precluding highway or water
transportation, such as a frozen vessel