Publication 947: Practice Before the IRS & Power of Attorney
Treasury Department Circular 230
Internal Revenue Manual
Publication 17: General Tax Law for Individuals
Publication 4491: VITA Preparers / TCF
IRC Code 7216: Criminal Provisions for Privacy of Taxpayers
IRC Code 6713: Civil Penalty for Taxpayer Privacy
IRC Code 7525: Confidentiality Previlage
IRC Code 10.22: Circular 230 / Due Deligence
Form 911: Request for Taxpayer Advocate Service Assistance
Form 2848: Power of Attorney and Declaration of Representative
Form 8821: Tax Information Authorization
Form 8275: Disclosure Statement
Form 843: Claim for Refund and Request for Abatement
Form 8453: US Individual Income Tax Transmittal for IRS efile Return