International regulation and evaluation of public procurement systems address the following objectives:

• sharing best practices and assistance in reforming and improving procurement systems in countries;
• harmonization of legislation and key requirements in public procurement to facilitate suppliers' access to new markets and consumers' access to a wider range of goods, works and services;
• promotion and introduction of rules under new approaches to public procurement, including digital platforms and “sustainable procurement”.

International practices in regulating public procurement may be classified into several categories:

• standards for regulating public procurement;
• supranational regulation in public procurement;
• systems of public procurement evaluation and audit.