evidence: Sec. 1624 requires the Office of the Director of National Intelligence (ODNI) to notify Congress within 48 hours after assessing that Iran has any amount of uranium-235 enriched to greater than 60% purity or has engaged in significant enrichment activity. For the purposes of this notification requirement, significant enrichment activity is enrichment of uranium-235 (1) to a purity percentage 5% or higher than indicated in any prior notification to Congress, or (2) in a quantity exceeding 10 kilograms.