Answer:
There is also Subpart E (Duties of Furnishers of Information) of CFPB Regulation V (12 CFR Part 1022). This subpart includes sections titled "Reasonable policies and procedures concerning the accuracy and integrity of furnished information" and "Direct disputes."
Regulation V also includes Appendix E, "Interagency Guidelines Concerning the Accuracy and Integrity of Information Furnished to Consumer Reporting Agencies."