(a) Abbreviations may not be used in a proper shipping name marking except as authorized in this section.
(b) The abbreviation ``ORM'' may be used in place of the words ``Other Regulated Material.''
(c) Abbreviations which appear as authorized descriptions in column 2 of the Sec. 172.101 table (e.g., ``TNT'' and ``PCB'') are authorized. [Amdt. 172-123, 55 FR 52591, Dec. 21, 1990, as amended by Amdt. 172-145, 60 FR 49110, Sept. 21, 1995]