150 Subpart A—General Subpart B—Table of Hazardous Materials
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§ 172.1 49 CFR Ch. I (10–1–19 Edition) APPENDIX B TO PART 172—TREFOIL SYMBOL shipping name. In addition, the Table APPENDIX C TO PART 172—DIMENSIONAL SPEC- specifies or references requirements in IFICATIONS FOR RECOMMENDED PLACARD this subchapter pertaining to labeling, HOLDER packaging, quantity limits aboard air- APPENDIX D TO PART 172—RAIL RISK ANAL- YSIS FACTORS craft and stowage of hazardous mate- rials aboard vessels. AUTHORITY: 49 U.S.C. 5101–5128, 44701; 49 CFR 1.81, 1.96 and 1.97. (b) Column 1: Symbols. Column 1 of the Table contains six symbols (‘‘ + ’’, ‘‘A’’, SOURCE: Amdt. 172–29, 41 FR 15996, Apr. 15, ‘‘D’’, ‘‘G’’, ‘‘I’’ and ‘‘W’’) as follows: 1976, unless otherwise noted. (1) The plus (+) sign fixes the proper shipping name, hazard class and pack- Subpart A—General ing group for that entry without regard to whether the material meets the defi- § 172.1 Purpose and scope. nition of that class, packing group or This part lists and classifies those any other hazard class definition. When materials which the Department has the plus sign is assigned to a proper designated as hazardous materials for shipping name in Column (1) of the purposes of transportation and pre- § 172.101 Table, it means that the mate- scribes the requirements for shipping rial is known to pose a risk to humans. papers, package marking, labeling, and When a plus sign is assigned to mix- transport vehicle placarding applicable tures or solutions containing a mate- to the shipment and transportation of rial where the hazard to humans is sig- those hazardous materials. nificantly different from that of the [Amdt. 172–29, 41 FR 15997, Apr. 15, 1976, as pure material or where no hazard to amended by 66 FR 45379, Aug. 28, 2001] humans is posed, the material may be described using an alternative shipping § 172.3 Applicability. name that represents the hazards posed (a) This part applies to— by the material. An appropriate alter- (1) Each person who offers a haz- nate proper shipping name and hazard ardous material for transportation, and class may be authorized by the Asso- (2) Each carrier by air, highway, rail, ciate Administrator. or water who transports a hazardous (2) The letter ‘‘A’’ denotes a material material. that is subject to the requirements of (b) When a person, other than one of this subchapter only when offered or those provided for in paragraph (a) of intended for transportation by aircraft, this section, performs a packaging la- unless the material is a hazardous sub- beling or marking function required by stance or a hazardous waste. A ship- this part, that person shall perform the ping description entry preceded by an function in accordance with this part. ‘‘A’’ may be used to describe a material [Amdt. 172–29, 41 FR 15996, Apr. 15, 1976, as for other modes of transportation pro- amended by Amdt. 172–32, 41 FR 38179, Sept. vided all applicable requirements for 9, 1976] the entry are met. (3) The letter ‘‘D’’ identifies proper Subpart B—Table of Hazardous shipping names which are appropriate Materials and Special Provisions for describing materials for domestic transportation but may be inappro- § 172.101 Purpose and use of haz- priate for international transportation ardous materials table. under the provisions of international (a) The Hazardous Materials Table regulations (e.g., IMO, ICAO). An alter- (Table) in this section designates the nate proper shipping name may be se- materials listed therein as hazardous lected when either domestic or inter- materials for the purpose of transpor- national transportation is involved. tation of those materials. For each (4) The letter ‘‘G’’ identifies proper listed material, the Table identifies the shipping names for which one or more hazard class or specifies that the mate- technical names of the hazardous ma- rial is forbidden in transportation, and terial must be entered in parentheses, gives the proper shipping name or di- in association with the basic descrip- rects the user to the preferred proper tion. (See § 172.203(k).) 150 VerDate Sep<11>2014 11:45 Oct 30, 2019 Jkt 247227 PO 00000 Frm 00160 Fmt 8010 Sfmt 8010 Q:\49\49V2.TXT PC31 kpayne on VMOFRWIN702 with $$_JOB Pipeline and Haz. Matls. Safety Admin., DOT § 172.101 (5) The letter ‘‘I’’ identifies proper may be used as the proper shipping shipping names which are appropriate name. for describing materials in inter- (3) The word ‘‘poison’’ or ‘‘poisonous’’ national transportation. An alternate may be used interchangeably with the proper shipping name may be selected word ‘‘toxic’’ when only domestic when only domestic transportation is transportation is involved. The abbre- involved. viation ‘‘n.o.i.’’ or ‘‘n.o.i.b.n.’’ may be (6) The letter ‘‘W’’ denotes a material used interchangeably with ‘‘n.o.s.’’. that is subject to the requirements of (4) Except for hazardous wastes, when this subchapter only when offered or qualifying words are used as part of the intended for transportation by vessel, proper shipping name, their sequence unless the material is a hazardous sub- in the package markings and shipping stance or a hazardous waste. A ship- paper description is optional. However, ping description entry preceded by a the entry in the Table reflects the pre- ‘‘W’’ may be used to describe a mate- ferred sequence. rial for other modes of transportation (5) When one entry references an- provided all applicable requirements other entry by use of the word ‘‘see’’, if for the entry are met. both names are in Roman type, either (c) Column 2: Hazardous materials de- name may be used as the proper ship- scriptions and proper shipping names. ping name (e.g., Ethyl alcohol, see Eth- Column 2 lists the hazardous materials anol). descriptions and proper shipping names (6) When a proper shipping name in- of materials designated as hazardous cludes a concentration range as part of materials. Modification of a proper the shipping description, the actual shipping name may otherwise be re- concentration, if it is within the range quired or authorized by this section. stated, may be used in place of the con- Proper shipping names are limited to centration range. For example, an those shown in Roman type (not aqueous solution of hydrogen peroxide italics). containing 30 percent peroxide may be (1) Proper shipping names may be described as ‘‘Hydrogen peroxide, aque- used in the singular or plural and in ei- ous solution with not less than 20 percent ther capital or lower case letters. but not more than 40 percent hydrogen Words may be alternatively spelled in peroxide’’ or ‘‘Hydrogen peroxide, aque- the same manner as they appear in the ous solution with 30 percent hydrogen ICAO Technical Instructions or the peroxide.’’ Also, the percent sign (%) IMDG Code. For example ‘‘aluminum’’ may be used in place of the word ‘‘per- may be spelled ‘‘aluminium’’ and ‘‘sul- cent’’ when words in italics containing fur’’ may be spelled ‘‘sulphur’’. How- the word ‘‘percent’’ are used in addi- ever, the word ‘‘inflammable’’ may not tion to the proper shipping name. be used in place of the word ‘‘flam- (7) Use of the prefix ‘‘mono’’ is op- mable’’. tional in any shipping name, when ap- (2) Punctuation marks and words in propriate. Thus, Iodine monochloride italics are not part of the proper ship- may be used interchangeably with Io- ping name, but may be used in addition dine chloride. In ‘‘Glycerol alpha- to the proper shipping name. The word monochlorohydrin’’ the term ‘‘mono’’ ‘‘or’’ in italics indicates that there is a is considered a prefix to the term choice of terms in the sequence that ‘‘chlorohydrin’’ and may be deleted. may alternately be used as the proper (8) Use of the word ‘‘liquid’’ or shipping name or as part of the proper ‘‘solid’’. The word ‘‘liquid’’ or ‘‘solid’’ shipping name, as appropriate. For ex- may be added to a proper shipping ample, for the hazardous materials de- name when a hazardous material spe- scription ‘‘Carbon dioxide, solid or Dry cifically listed by name may, due to ice’’ either ‘‘Carbon dioxide, solid’’ or differing physical states, be a liquid or ‘‘Dry ice’’ may be used as the proper solid. When the packaging specified in shipping name; and for the hazardous Column 8 is inappropriate for the phys- materials description ‘‘Articles, pres- ical state of the material, the table surized pneumatic or hydraulic,’’ ei- provided in paragraph (i)(4) of this sec- ther ‘‘Articles, pressurized pneumatic’’ tion should be used to determine the or ‘‘Articles, pressurized hydraulic’’ appropriate packaging section. 151 VerDate Sep<11>2014 11:45 Oct 30, 2019 Jkt 247227 PO 00000 Frm 00161 Fmt 8010 Sfmt 8010 Q:\49\49V2.TXT PC31 kpayne on VMOFRWIN702 with $$_JOB § 172.101 49 CFR Ch. I (10–1–19 Edition) (9) Hazardous wastes. If the word or more hazardous materials in the ‘‘waste’’ is not included in the haz- same hazard class, must be described ardous material description in Column using an appropriate shipping descrip- 2 of the Table, the proper shipping tion (e.g., ‘‘Flammable liquid, n.o.s.’’). name for a hazardous waste (as defined The name that most appropriately de- in § 171.8 of this subchapter), shall in- scribes the material shall be used; e.g., clude the word ‘‘Waste’’ preceding the an alcohol not listed by its technical proper shipping name of the material. name in the Table shall be described as For example: Waste acetone. ‘‘Alcohol, n.o.s.’’ rather than ‘‘Flam- (10) Mixtures and solutions. (i) A mix- mable liquid, n.o.s.’’. Some mixtures ture or solution meeting the definition may be more appropriately described of one or more hazard class that is not according to their application, such as identified specifically by name, com- ‘‘Coating solution’’ or ‘‘Extracts, fla- prised of a single predominant haz- voring liquid’’ rather than by an n.o.s.