CFR > Title 45 - Public Welfare > SUBTITLE B—Regulations Relating to Public Welfare > CHAPTER XI—NATIONAL FOUNDATION ON THE ARTS AND THE HUMANITIES (parts 1100 to 1186) > SUBCHAPTER B—NATIONAL ENDOWMENT FOR THE ARTS (parts 1150 to 1159) > PART 1150—COLLECTION OF CLAIMS > SUBPART C—Tax Refund Offset (§1150.30 to §1150.31)