page-166

312

49 CFR Ch. I (10–1–18 Edition)

§ 172.101

PPENDIX

§ 172.101—L

IST OF

AZARDOUS

UBSTANCES AND

EPORTABLE

UANTITIES

1. This appendix lists materials and their

corresponding reportable quantities (RQ’s)
that are listed or designated as ‘‘hazardous
substances’’ under section 101(14) of the Com-
prehensive Environmental Response, Com-
pensation, and Liability Act, 42 U.S.C.
9601(14) (CERCLA; 42 U.S.C. 9601

et seq

). This

listing fulfills the requirement of CERCLA,
42 U.S.C. 9656(a), that all ‘‘hazardous sub-
stances,’’ as defined in 42 U.S.C. 9601(14), be
listed and regulated as hazardous materials
under 49 U.S.C. 5101–5127. That definition in-
cludes substances listed under sections
311(b)(2)(A) and 307(a) of the Federal Water
Pollution Control Act, 33 U.S.C. 1321(b)(2)(A)
and 1317(a), section 3001 of the Solid Waste
Disposal Act, 42 U.S.C. 6921, and section 112
of the Clean Air Act, 42 U.S.C. 7412. In addi-
tion, this list contains materials that the
Administrator of the Environmental Protec-
tion Agency has determined to be hazardous
substances in accordance with section 102 of
CERCLA, 42 U.S.C. 9602. It should be noted
that 42 U.S.C. 9656(b) provides that common
and contract carriers may be held liable
under laws other than CERCLA for the re-
lease of a hazardous substance as defined in
that Act, during transportation that com-
menced before the effective date of the list-
ing and regulating of that substance as a
hazardous material under 49 U.S.C. 5101–5127.

2. This appendix is divided into two TA-

BLES which are entitled ‘‘TABLE 1—HAZ-
ARDOUS SUBSTANCES OTHER THAN
RADIONUCLIDES’’ and ‘‘TABLE 2—RADIO-
NUCLIDES.’’ A material listed in this appen-
dix is regulated as a hazardous material and
a hazardous substance under this subchapter
if it meets the definition of a hazardous sub-
stance in § 171.8 of this subchapter.

3. The procedure for selecting a proper

shipping name for a hazardous substance is
set forth in § 172.101(c).

4. Column 1 of TABLE 1, entitled

‘‘Haz-

ardous substance’’,

contains the names of

those elements and compounds that are haz-
ardous substances. Following the listing of
elements and compounds is a listing of waste
streams. These waste streams appear on the
list in numerical sequence and are referenced
by the appropriate ‘‘D’’, ‘‘F’’, or ‘‘K’’ num-
bers. Column 2 of TABLE 1, entitled

‘‘Re-

portable quantity (RQ)’’,

contains the report-

able quantity (RQ), in pounds and kilograms,
for each hazardous substance listed in Col-
umn 1 of TABLE 1.

5. A series of notes is used throughout

TABLE 1 and TABLE 2 to provide additional
information concerning certain hazardous
substances. These notes are explained at the
end of each TABLE.

6. TABLE 2 lists radionuclides that are

hazardous substances and their cor-
responding RQ’s. The RQ’s in table 2 for
radionuclides are expressed in units of curies
and terabecquerels, whereas those in table 1
are expressed in units of pounds and kilo-
grams. If a material is listed in both table 1
and table 2, the lower RQ shall apply. Radio-
nuclides are listed in alphabetical order. The
RQ’s for radionuclides are given in the radio-
logical unit of measure of curie, abbreviated
‘‘Ci’’, followed, in parentheses, by an equiva-
lent unit measured in terabecquerels, abbre-
viated ‘‘TBq’’.

7. For mixtures of radionuclides, the fol-

lowing requirements shall be used in deter-
mining if a package contains an RQ of a haz-
ardous substance: (i) if the identity and
quantity (in curies or terabecquerels) of each
radionuclide in a mixture or solution is
known, the ratio between the quantity per
package (in curies or terabecquerels) and the
RQ for the radionuclide must be determined
for each radionuclide. A package contains an
RQ of a hazardous substance when the sum of
the ratios for the radionuclides in the mix-
ture or solution is equal to or greater than
one; (ii) if the identity of each radionuclide
in a mixture or solution is known but the
quantity per package (in curies or
terabecquerels) of one or more of the radio-
nuclides is unknown, an RQ of a hazardous
substance is present in a package when the
total quantity (in curies or terabecquerels)
of the mixture or solution is equal to or
greater than the lowest RQ of any individual
radionuclide in the mixture or solution; and
(iii) if the identity of one or more radio-
nuclides in a mixture or solution is unknown
(or if the identity of a radionuclide by itself
is unknown), an RQ of a hazardous substance
is present when the total quantity (in curies
or terabecquerels) in a package is equal to or
greater than either one curie or the lowest
RQ of any known individual radionuclide in
the mixture or solution, whichever is lower.

ABLE

PPENDIX

A—H

AZARDOUS

UBSTANCES

THER

HAN

ADIONUCLIDES

Hazardous substance

Reportable

quantity (RQ)

pounds

(kilograms)

A2213 ........................................................................................................................................................................

5000 (2270)

Acenaphthene ...........................................................................................................................................................

100 (45.4)

Acenaphthylene .........................................................................................................................................................

5000 (2270)

Acetaldehyde .............................................................................................................................................................

1000 (454)

Acetaldehyde, chloro- ................................................................................................................................................

1000 (454)

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