2 U.S. Code § 4102
2 U.S. Code § 4102 is about Purchase of supplies for Senate and House. It is under Subchapter I (General) of Chapter 41 (Congressional Officers and Administration) of Title 2 (The Congress) of the Code.
Supplies for use of the Senate and the House of Representatives may be purchased in accordance with the schedule of contract articles and prices of the Administrator of General Services.