5.U.S. Code § 5103 is about Determination of applicability. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Chapter 51 (Classification) of Title 5 (Government Organizations and Employees) of the Code.
The Office of Personnel Management shall determine finally the applicability of section 5102 of this title to specific positions and employees, except for positions and employees in the Office of the Architect of the Capitol.
5 U.S. Code § 5105 5.U.S. Code § 5105 is about Standards for classification of positions. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Chapter 51
5 U.S. Code § 5104 5.U.S. Code § 5104 is about Basis for grading positions. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Chapter 51 (Classification)
5 U.S. Code § 5102 5.U.S. Code § 5102 is about Definitions; application. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Chapter 51 (Classification) of Title
5 U.S. Code § 5101 5.U.S. Code § 5101 is about Purpose. It is under Part 3 (Employees) Subpart D (Pay and Allowances) Chapter 51 (Classification) of Title 5
