2.5.3. Section 3: Capability Requirements (CR) and Gaps/Overlaps. Same as the regular ICD with the addition of the Net-Ready performance attribute table. Reference Figure B-2 and describe each attribute in terms of initial minimum values rather than threshold and objective values.

For reference or comparison, below is what the JCIDS Manual says for the ICD 2021 itself:

2.5.4.2.2. Threat. Detailed threat analysis is critical for friendly force mission planning and defense suppression across all domains. The Joint Intelligence Preparation of the Operational Environment (JIPOE) alerts decision-makers at all echelons to potential emerging situations and threats. The threat that a capability is designed to neutralize or defeat to successfully complete a specified mission must be clearly identified. The threat should be consistent with the JIPOE conducted for the joint commander.