Hi, Ralph, here, for public review, is the Security Association nit list I transmitted privately, sanitized as you requested  ;-) 

3.1.s defines Security Hash Algorithm (SHA). 3.2 defines SHA as a Secure Hash Algorithm. I think "Secure" is correct.

SHA-256 seems to be used normatively (tables 44 and x1), but is not defined anywhere in SPC-4. Is its relevance to SPC-4 fully defined and/or referenced in NIST SP 800-56A?

In table x2, definition of DS_NONCE, 2nd line, 2nd "and" should be "an".

Table x2 footnote d suggests nonces should be "at least" half the length of the key seed, suggesting that they might be longer than that. Although it isn't logically inconsistent, is there a reason to limit nonces to 32 bytes while key seeds can be up to 64 bytes?

5.13.3.3 item a: I'm not sure what an "SA lifetime value..." is. At first I thought it was an agreed timeout on an SA, but after more thought (and seeing no other reference to timeouts), I presume it means "value that is fixed for the lifetime of the SA..." Is that correct?