Combination Packaging - A combination of packaging, for transport purposes, consisting of one or
more inner containers secured in a nonbulk outer packaging. It does not include a composite packaging.
Combustible Liquid - A combustible liquid is any liquid that does not meet the definition of any other
classification specified in this manual and has a flash point above 60.5o C (141o F) and below 93o C (200o
F). Any mixture having one or more components with a flash point of 93o C (200o F) or higher, that
makes up at least 99 percent of the total volume of the mixture is not a combustible liquid.
Competent Authority Approval (CAA) - Written approval granted by the DOT Competent Authority to
use a design-type package without POP testing it. DoD activities cannot waive POP requirements.
Competent Authority - A national agency responsible under its national law for the control or regulation
of a particular aspect of the transportation of hazardous materials. The Associate Director, Office of
Hazardous Materials Transportation, Research and Special Programs Administration, US Department of
Transportation, is the United States Competent Authority.
Composite Packaging - Packaging consisting of an outer packaging and inner receptacle, so constructed
that the inner receptacle and the outer packaging form an integral packaging. Once assembled it remains
thereafter an integrated single unit; it is filled, stored, shipped, and emptied as such.
Compressed Gas In Solution - A nonliquified compressed gas dissolved in a solvent.
CONEX - A military-controlled and owned reusable serially numbered, steel shipping container in either
of two sizes.
Container - Any portable device in which a material is stored, transported, disposed of, or otherwise
Containerization - The use of containers to unitize cargo for transportation, supply, and storage.
Containerization incorporates supply, transportation, packaging, storage, and security together with
visibility of container and its contents into a distribution system from source to user.
Contingency - An emergency involving military forces caused by natural disasters, terrorists,
subversives, or by required military operations. Due to the uncertainty of the situation, contingencies
require plans, rapid response, and special procedures to ensure the safety and readiness of personnel,
installations, and equipment.
Dangerous When Wet - A hazard classification and label requirement for water-reactive materials being
shipped by DOT and international modes of transportation.
Design - The description of a special form material, a package, or a packaging, that enables those items to
be fully identified. The description may include specifications, engineering drawings, reports meeting
regulatory requirements, and other relevant documentation.