- SUBCHAPTER I—GENERAL PROVISIONS (§§ 540 – 579f)
- SUBCHAPTER II—PAY AND ALLOWANCES; TRAVELING EXPENSES AND SUBSISTENCE (§§ 581 – 584)
- SUBCHAPTER III—ACQUISITION OF LAND AND MATERIALS (§§ 591 – 598a)
- SUBCHAPTER IV—PARTICULAR WORK OR IMPROVEMENTS (§§ 601 – 610)
- SUBCHAPTER V—PROSECUTION OF WORK GENERALLY (§§ 621 – 634)