The ABC's of charting include: A. Accurate. Correspondence on file in a confidential manner. 2.Sample Confidentiality Agreement. (Modify as appropriate for the situation). All proposals are checked for compliance with applicable requirements prior to submission in Research.gov. This transmits revised IRM 21.3. 7, Taxpayer Contacts, Processing Third-Party Authorizations onto the Centralized Authorization File (CAF). Technicality in proposals received. Correspondence on file in a confidential manner. 2. To: Prospective Parties.