Law No. 9,854 established a critical ethical safeguard in Brazil’s public procurement system. The law integrates constitutional labor protections into government bidding processes. The law mandates that any company seeking to contract with the public administration must provide a formal declaration. They should prove they do not employ minors under 16 years of age, except in legal apprenticeship roles starting at 14. Furthermore, it strictly prohibits the use of workers under 18 for night shifts or hazardous and unhealthy tasks.