If the Original Classification Authority (OCA) has significant doubts about the appropriate level of classification how should he or she classify information?

The Original Classification Authority (OCA) should err on the side of overclassification to protect sensitive information until a definitive decision can be made. It is better to initially classify the information at a higher level and then conduct a reassessment rather than risk underclassifying and compromising security. The OCA can always downgrade the classification after further evaluation.