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CFR > Title 23 - Highways > CHAPTER I—FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER G—ENGINEERING AND TRAFFIC OPERATIONS (parts 620 to 669) > PART 635—CONSTRUCTION AND MAINTENANCE > SUBPART D—General Material Requirements (§635.401 to §635.417) > 635.401—Purpose.
635.401—Purpose.
The purpose of this subpart is to prescribe requirements and procedures relating to product and material selection and use on Federal-aid highway projects.