18 USC §1516- Obstruction of Federal Audit:
(a)Whoever, with intent to deceive or defraud the United States, endeavors to influence, obstruct, or impede a Federal auditor in the performance of official duties relating to a person, entity, or program receiving in excess of $100,000, directly or indirectly, from the United States in any 1 year period under a contract or subcontract, grant, or cooperative agreement, or relating to any property that is security for a mortgage note that is insured, guaranteed, acquired, or held by the Secretary of Housing and Urban Development pursuant to any Act administered by the Secretary, or relating to any property that is security for a loan that is made or guaranteed under title V of the Housing Act of 1949, shall be fined under this title, or imprisoned not more than 5 years, or both.
(b)For purposes of this section-
(1) the term “Federal auditor” means any person employed on a full- or part-time or contractual basis to perform an audit or a quality assurance inspection for or on behalf of the United States; and
(2) the term “in any 1 year period” has the meaning given to the term “in any one-year period” in section 666.
18 USC §1517- Obstruction examination of financial institution:
Whoever corruptly obstructs or attempts to obstruct any examination of a financial institution by an agency of the United States with jurisdiction to conduct an examination of such financial institution shall be fined under this title, imprisoned not more than 5 years, or both.
18 USC §1518- Obstruction of criminal investigation of health care offenses:
(a) Whoever willfully prevents, obstructs, misleads, delays or attempts to prevent, obstruct, mislead, or delay the communication of information or records relating to a violation of a Federal health care offense to a criminal investigator shall be fined under this title or imprisoned not more than 5 years, or both. (b) As used in this section the term “criminal investigator” means any individual duly authorized by a department, agency, or armed force of the United States to conduct or engage in investigations for prosecutions for violations of health care offenses
18 USC §1505- Obstruction of proceedings before department, agencies, and committees:
Whoever, with intent to avoid, evade, prevent, or obstruct compliance, in whole or in part, with any civil investigative demand duly and properly made under the Antitrust Civil Process Act, willfully withholds, misrepresents, removes from any place, conceals, covers up, destroys, mutilates, alters, or by other means falsifies any documentary material, answers to written interrogatories, or oral testimony, which is the subject of such demand; or attempts to do so or solicits another to do so; or
Whoever corruptly, or by threats or force, or by any threatening letter or communication influences, obstructs, or impedes or endeavors to influence, obstruct, or impede the due and proper administration of the law under which any pending proceeding is being had before any department or agency of the United States, or the due and proper exercise of the power of inquiry under which any inquiry or investigation is being had by either House, or any committee of either House or any joint committee of the Congress.
Shall be fined under this title, imprisoned not more than 5 years or, if the offense involves international or domestic terrorism (as defined in section 2331), imprisoned not more than 8 years, or both.