UN or ID (identification) number—Contains the serial number assigned to the article or substance under the United Nations classification system. When this number is used, it must be prefixed by the letters “UN”. If the substance has not been assigned a number in the UN classification system, a temporary identification number in the 8000 series has been assigned and is indicated where appropriate. Numbers in the 8000 series must be identified with the “ID” prefix instead of when UN is indicated for markings and documentation in these Regulations. For example, the number would appear as UN 1950 or ID 8000 and not as 1950 or 8000.

Proper Shipping Name/Description—Contains an alphabetical listing of dangerous goods articles and substances identified by their proper shipping names together with qualifying descriptive text. The proper shipping name is shown in bold (dark) type whereas the descriptive text is shown in light type. See 8.1.3 for additional information concerning proper shipping names.

1. other names by which certain articles and substances may be known; in such cases a cross-reference to the proper shipping name is given;
2. names of articles and substances which are forbidden for carriage by air under any circumstances;
3. names of articles and substances which are subject to additional considerations under special provisions; and
4. names of substances and articles, which are considered to be not restricted.

The following symbols appear against some of the entries in this column:

Names are given in strict alphabetical order of the proper shipping name appearing in bold print, i.e. where names comprise more than one word, they are alphabetized as if they were a single word. However, the following components of the names have been ignored:

• numerals;
• the single letters a-, b-, m-, N-, n-, O-, o-, p-;
• the prefixes alpha-, beta-, meta-, omega-, sec-, tert-;
• the term “n.o.s.”.

Class or Division (Subsidiary hazard)—Contains the class or division number assigned to the article or substance according to the classification system described in Section 3. In the case of Class 1 Explosives, the compatibility group is also shown. Where the substance has a subsidiary hazard(s) the class or division number, which have been identified by applying the classification criteria in Section 3 is shown in parentheses following the primary hazard. All subsidiary hazards are listed in numerical order.

Labels—Contains the hazard label(s) to be applied to the outside of each package and overpack for the commodity shown in Column B. The primary hazard label is listed first followed by any subsidiary hazard label(s). For n.o.s. or generic articles and substances with more than one hazard, all applicable subsidiary hazard labels may not be indicated. In these cases, subsidiary hazard labels must be applied in accordance with 7.2.3.5, 7.2.3.6 and 7.2.3.8. In addition, handling labels for “Cryogenic liquid”, “Keep away from heat” and “Magnetized Material” and the mark for “Environmentally hazardous substance” are shown in this column against applicable articles and substances. See 7.1.5 for the application of additional marks and 7.2.4 for the application of handling labels.

Packing Group —Contains the UN Packing Group, i.e. I, II or III, where assigned to the substance (see 3.0.3).

Excepted Quantity Code—Contains the Excepted Quantity code assigned to the substance or article by packing group (see 2.6.4.1 and Table 2.6.A).

Passenger and Cargo Aircraft Limited Quantity—Maximum Net Quantity per Package—Shows the maximum net quantity (weight or volume) of the article or substance allowed in each package for transport on a passenger or cargo aircraft. The weight quoted is the net weight, unless otherwise indicated by a letter G which refers to the gross weight. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). If the word Forbidden is shown, the article or substance cannot be carried under Limited Quantity provisions.

Passenger and Cargo Aircraft—Maximum Net Quantity per Package—Shows the maximum net quantity ( weight or volume) of the article or substance allowed in each package for transport on a passenger or cargo aircraft. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). The maximum net quantities indicated may be exceeded only if specified in these Regulations, or as permitted with the approval of the appropriate national authority of the State of Origin and the State of the Operator. If the word Forbidden is shown, the article cannot be carried on a passenger aircraft.

Cargo Aircraft Only—Maximum Net Quantity per Package—Shows the maximum net quantity (weight or volume) of the article or substance allowed in each package for transport on a cargo aircraft only. Factors for converting imperial or US units to SI units appear in Appendix B. The maximum quantity per package may be further limited by the type of container used (see Section 5). The maximum net quantities indicated may be exceeded only if specified in these Regulations, or as permitted with the approval of the appropriate national authority of the State of Origin and the State of the Operator. If the word Forbidden is shown, the article cannot be carried on any aircraft unless exempted by States under the provisions of 1.2.6.

Special Provisions—May show a single, double or triple digit number preceded by the letter “A”, against appropriate entries in the List of Dangerous Goods. This alpha-numeric indicator relates to Subsection 4.4 and applies to all the packing groups permitted for the entry concerned, unless the wording of the special provision makes it otherwise apparent.

It must be carefully noted that Special Provisions “ A1” and “ A2” are, in effect, “approvals” which may be granted by States for the carriage of dangerous goods which are normally forbidden for carriage either on passenger aircraft or on cargo aircraft. These “approvals” are not regarded as “State Exemptions” as described in 1.2.6.1. However, acceptance of dangerous goods under State approvals is at the discretion of the operator(s). Advance arrangements must be made and prior approval obtained before dangerous goods offered under “A1” or “A2” Special Provisions are presented to operators for transport. See also 1.2.6.4.

ERG Code—Emergency Response Drill Code as found in the International Civil Aviation Organization (ICAO) document “The Emergency Response Guidance for Aircraft Incidents Involving Dangerous Goods” (ICAO Doc. 9481-AN/928). The code consists of a combination of letters and numbers, which represents suggested responses to incidents involving the specific dangerous good entry to which the drill code is assigned.

The ERG Code is provided for the benefit of operators so that the ERG Code may be added to the Special Load—Notification to Captain (NOTOC).