What is the policy regarding split purchases?

The correct choice highlights that split purchases are strictly prohibited. This policy is in place to prevent the circumvention of the micro-purchase threshold, which is a fixed limit on the amount that can be approved for a single purchase without further oversight. By splitting a larger purchase into smaller transactions, there is a risk of improper use of government funds and a lack of sufficient control over expenditures. This prohibition aims to promote fiscal responsibility and ensure that all purchases comply with the established regulations, thereby maintaining transparency and accountability in government spending.

In contrast, other options suggest potential approval or acceptability under certain conditions which would undermine the goal of preventing misuse of funds and maintaining compliance with procurement regulations.