Submit enough to show the process exists, is documented and is company-specific, while redacting the parameters themselves. Titles, revision histories, training records and a declaration explaining the redactions usually carry the point.
Show the shape of the secret, not its contents
Hypothetical example: a Grand Bay-Westfield owner refuses to send the cladding parameter tables to anyone, and the first draft of his petition therefore contains no documentary evidence that the process exists at all. Both positions are avoidable. A workable file includes the procedure's cover page and table of contents, the revision log showing which revisions the transferee authored and when, the training matrix listing who is certified on it, an internal memo restricting its circulation, and a signed statement explaining that technical values have been withheld as confidential commercial information.
Agree the redaction plan before anything leaves the shop, keep an unredacted master under the company's control, and make sure the redactions are visibly redactions rather than quiet deletions. An officer who can see the shape of the document rarely needs its contents.