@Charles, I've seen this elsewhere but have never seen it in the code/auditing guidance, is there a reference to this 3 months guideline? I've gotten away with less than 3 months implementation in a lot of clauses, especially for brand new programs (such as many of those we didn't have guidance for until November of last year).
Hi 3F,
Memory was 1month out in a referenced sense, perhaps less in actuality (see below). 
From the SQF8 (SQF7.2 was same) Manufacturing Code -
Implement the SQF System – implement the prepared policies, procedures, work instructions and specifications,
and keep records to demonstrate compliance to the relevant modules of the SQF Food Safety Code for
Manufacturing. In other words, “do what you say.” SQFI recommends that a minimum of two months of records is
available before a site audit is conducted.
Also see this interesting 2017 thread - Posts 2, 4, 14, 17-23 :-
http://www.ifsqn.com...ng-methods-etc/
The sub-link in post 23 of above link implies (eg see posts 6,15 of sublink) that <3 months may also generate some auditor difficulties.