Editing UN number (section)

==Non-UN identifiers==
An '''NA number''' ([[North America]] number) is issued by the [[United States Department of Transportation]] and is identical to UN numbers, except that some substances without a UN number may have an NA number. These additional NA numbers use the range NA 9000 - NA 9279. There are some exceptions, for example, NA 2212 is all [[asbestos]] with UN 2212 limited to [[asbestos]], [[amphibole]] amosite, [[tremolite]], [[actinolite]], [[anthophyllite]], or [[crocidolite]]. Another exception, NA 3334, is self-defense spray, non-pressurized while UN 3334 is [[aviation]]-regulated liquid, not otherwise specified. For the complete list, see [[NA/UN exceptions]].

An '''ID number''' is a third type of identification number used for hazardous substances being offered for [[Aviation|air transport]]. Substances with an ID number are associated with proper [[Freight transport|shipping]] names recognized by the [[ICAO]] Technical Instructions.<ref>{{cite web|url=https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-B/section-172.101|title=Title 49 - Part 173 - Subtitle B - Chapter I - Subchapter C - Part 172 - Subpart B|website=eCFR - Code of Federal Regulations|publisher=U.S. Government Publishing Office|access-date=2023-11-13}}</ref> ID 8000, Consumer commodity does not have a UN or NA number, and is classed as a [[HAZMAT Class 9 Miscellaneous|Class 9]] hazardous material.