# Assess Control Effectiveness

* Perform **systematic control assessments** using methodologies from **NIST SP 800-53A**, including test cases, document reviews, and technical evaluations.
* Conduct **internal and external audits** to validate control effectiveness.
* Reference: [NIST SP 800-53A](https://doi.org/10.6028/NIST.SP.800-53Ar5)
