What is one of the effects of derivative classification?

The choice that states making the initial determination that information requires protection against unauthorized disclosure accurately reflects one of the primary effects of derivative classification. Derivative classification involves analyzing existing classified information and determining whether new information derived from that source also requires protection. This means that individuals engaged in derivative classification must critically assess whether the information they are working with is sensitive and deserves classification to safeguard national security interests.

In this context, derivative classifiers must be well-versed in relevant classification guides and previous determinations, as their role ensures that classified information does not inadvertently become unprotected. Properly handling this process prevents unauthorized access and maintains the integrity of classified materials.

The other choices do not align with the principles of derivative classification. For instance, releasing classified information to the public contradicts the purpose of classification, which is to protect sensitive information. Ignoring existing classification guides undermines the consistency and reliability of the classification process. Lastly, refusing to handle classified information altogether negates the role of derivative classifiers, who are specifically tasked with determining the classification status of derived information. Thus, option A accurately captures a core function of derivative classification.