# Internal Controls to Detect and Prevent Unauthorized and Potentially Fraudulent Purchase Card Transactions at Four NASA Centers Needed Improvement
> **NASA OIG audit** · 2007-03-29
## Report
- **Type:** audit
- **Date:** 2007-03-29
- **Modified:** 2024-11-22
## Summary

March 29, 2007

## Source
- [NASA OIG report page](https://oig.nasa.gov/office-of-inspector-general-oig/ig-07-012/)
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