A contractor should inform candidates that a job lasting at least six months is:

In the context of employment, a job that lasts at least six months is generally considered temporary. This classification is based on the nature of temporary positions, which are typically defined by a specific duration or project completion. While some temporary positions may lead to permanent employment, the essential characteristic of a six-month job is its finite timeline.

In contrast, a permanent position implies an ongoing employment relationship without a defined endpoint, which does not align with the description of a job lasting six months. Similarly, a part-time job structure typically refers to the number of hours worked rather than the duration of employment. Therefore, the defining aspect of a six-month job is its temporary nature, making it accurate to inform candidates of this classification.