2.5.1.3. Section 3: Capability Discussion. Same as the regular CDD with the exception of the following:

2.5.1.3.1. Provide a table that briefly describes the contribution this IS-CDD makes to the fulfillment of CR described in the applicable ICDs or analysis of the capability gaps as illustrated in Figure B-15.

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

2.5.3.4. Address whether the capability solution will be subject to any undeveloped intelligence technologies or will be affected by the deactivation of fielded intelligence programs. Consider whether this will affect the effectiveness and timely delivery of the capability solution or increment. Ensure all timeframes for any enabling or program-required/dependent intelligence capabilities (fielded and future) are consistent with the capability solution's development schedule and planned IOC and FOC.