Chapter 6. Congressional and Committee Procedure; Investigations 2 U.S. Code §190d. Legislative review by standing committees of the Senate and the House of Representatives 2 U.S. Code §190f. General appropriation bills 2 U.S. Code §190g. Nonconsideration of certain private bills and resolutions 2 U.S. Code §190l. Private claims pending before Congress; taking of testimony 2 U.S. Code §190m. Subpoena for taking testimony; compensation of officers and witnesses; return of depositions 2 U.S. Code §191. Oaths to witnesses 2 U.S. Code §192. Refusal of witness to testify or produce papers 2 U.S. Code §193. Privilege of witnesses 2 U.S. Code §194. Certification of failure to testify or produce; grand jury action 2 U.S. Code §194a. Request by Congressional committees to officers or employees of Federal departments, agencies, etc., concerned with foreign countries or multilateral organizations for expression of views and opinions 2 U.S. Code §195. Fees of witnesses in District of Columbia 2 U.S. Code §195a. Restriction on payment of witness fees or travel and subsistence expenses to persons subpenaed by Congressional committees 2 U.S. Code §195b. Fees for witnesses requested to appear before Majority Policy Committee or Minority Policy Committee 2 U.S. Code §196. Senate resolutions for investigations; limit of cost 2 U.S. Code §197. Compensation of employees 2 U.S. Code §198. Adjournment 2 U.S. Code §199. Member of commission, board, etc., appointed by President pro tempore of Senate; recommendation process; applicability