2.6. Appendices.

2.6.1. The appendices for an IS-CDD are the same as for a regular CDD.

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

2.7. Annexes A - Z. (Optional) Incremental Approach or FoS. Sponsors may attach annexes to a CDD to define incremental interdependent capabilities or a FoS associated with a base CDD. See Annex A to this appendix for additional detail