What classification does a material that does not fall under any other hazardous class fall into?

A material that does not fit into any specific hazardous class is classified as Class 9. This classification is designated for miscellaneous dangerous goods that do not meet the criteria for the other classes (Class 1 through Class 8). Class 9 can include a wide variety of materials, such as environmentally hazardous substances, as well as products that pose a risk during transportation but do not clearly fall under the other defined classes.

Class 7, for example, is specifically for radioactive materials, and Class 8 is dedicated to corrosive substances. Class 6 focuses on poisonous and infectious substances. Therefore, when a material doesn’t meet the criteria for these specific classifications, it appropriately falls into Class 9, ensuring that it is still recognized and regulated as a potentially hazardous material even if it doesn't fit neatly into one of the more recognized categories. This ability to classify diverse hazardous materials helps maintain safety in transport and ensure appropriate handling measures are taken.