When are balloon charges applied to a package?

Balloon charges are applied to a package when its size is greater than standard shipping dimensions, specifically when the combined length and girth exceeds 84 inches but does not go beyond 108 inches. This means that even if the package weighs less than the typical weight limit, its oversized dimensions can still incur additional charges. The combined length and girth is calculated by adding the length of the package and the measurement around its thickest part, which is critical for determining whether balloon charges apply.

Understanding this requirement helps in accurately assessing shipping costs and ensures customers are informed about potential fees related to oversized packages. This is particularly relevant for businesses that frequently ship large items but do not necessarily require them to weigh heavily. The other options do not accurately define the condition under which balloon charges apply. For instance, size is more relevant than weight in this context, and just shipping within specific zones does not inherently trigger balloon charges.