Merger filing procedure updated-new Form I, mandatory non-confidential summary and tightened confidentiality affidavit requirements for notifications. Amendments require parties to notify combinations using Form I or Form II as per Commission notes, replace and expand Form I with detailed information requirements, mandate a non-confidential summary (up to 500 words) for publication, reduce physical copy requirements to one, broaden authorized signatories, tighten confidentiality by requiring an affidavit under the General Regulations, permit the Commission to invalidate invalid notices with a seven-day communication obligation, and convert key timelines to working days while adding a schedule category for purchaser acquisitions under Commission orders.