Final answer:
An enterprise fund is required when debt is backed by fees, when there's a legal requirement to cover costs through fees, or when a policy exists to establish such fees.
Step-by-step explanation:
An enterprise fund must be used to account for an activity when any of the following conditions exists:
- When debt is backed solely by fees and charges.
- When a legal requirement exists that the cost of providing services for an activity, including capital costs, be recovered through fees and charges.
- When a government has a policy to establish fees and charges to cover the cost of providing services for an activity.
Essentially, an enterprise fund is used when a government service operates in a manner similar to a private business where the services provided are funded primarily through user charges.