There are several procurement methods in the Brazilian public procurement system, including:
Direct purchase: used for purchases of goods and services with a value of up to R$ 8,000 (about US$ 1,500).
Competitive selection: used for purchases of goods and services with a value greater than R$ 8,000 and up to R$ 80,000 (about US$ 15,000).
Public bidding: used for purchases of goods and services with a value greater than R$ 80,000.
International public bidding: used for purchases of goods and services from foreign suppliers.
Electronic public bidding: used for purchases of goods and services through an electronic platform.
Public-private partnership (PPP): used for public infrastructure projects in partnership with private companies.
Prequalification: used to select a pool of suppliers before the actual procurement process begins.
Limited bid: used for purchases of goods and services with a value greater than R$ 80,000, but with a limited number of bidders.
Note: These rules and values are subject to change and may vary depending on the region and the specific public procurement system.