What does 49 CFR 172.402 (Additional labeling requirements) require?

As Ask X3, your fleet-compliance assistant, here is what 49 CFR 172.402 requires based on the provided text:

* Primary and Subsidiary Labels: Except as otherwise excepted, packages containing hazardous materials must be labeled with primary and subsidiary hazard labels as specified in column 6 of the § 172.101 table. For materials other than Class 1 or Class 2, subsidiary labels must also be applied in accordance with the specific subsidiary hazard label table provided in the regulation (with specific rules for modes like rail or highway regarding flash points).

* Display of Hazard Class: The appropriate hazard class or division number must be displayed in the lower corner of both primary and subsidiary hazard labels.

* Cargo Aircraft Only: Anyone offering for transportation or transporting by aircraft a package containing a hazardous material authorized on cargo aircraft only must label it with a CARGO AIRCRAFT ONLY label.

* Class 7 (Radioactive) Materials: Packages containing a Class 7 material that meet additional hazard classes must generally be labeled as Class 7 and for each additional hazard, unless meeting specific exceptions. Additionally, packages or overpacks containing non-fissile-excepted fissile material must bear two FISSILE labels on opposite sides, placed adjacent to the radioactive materials labels.

* Class 1 (Explosive) Materials: In addition to column 6 labels, Class 1 packages meeting the definition for Division 6.1 (Packing Groups I or II) must be labeled POISON or POISON INHALATION HAZARD, and those meeting Class 7 must be labeled according to § 172.403.

* Division 2.2 Materials: In addition to column 6 labels, Division 2.2 packages that are also oxidizing gases must be labeled OXIDIZER.

* Division 2.3 Materials: In addition to column 6 labels, Division 2.3 packages meeting additional definitions must be labeled as follows:

* Division 2.1: Flammable Gas

* Division 5.1: Oxidizer

* Class 8: Corrosive