Multiple X12 formats for submission to diverse clearing houses and insurance companies. Most clearinghouses publish companion guides for X12 formating. Some go as far as publishing companion guides for individual insurance companies. Currently we see developers customizing for their specific Clearing house. We can make use of the Processing format on the X12 page (Which existed in the FreeB days) . We could have a library of X12 formats (AKA Companion Guides) and thus simplify the process.