In Spain, public tenders are mainly regulated by the Public Sector Contracts Law (LCSP). This law sets out the rules, procedures, and principles that public authorities and companies wishing to contract with them must follow.
The legislation aims to ensure transparency, equal treatment, and competition among bidders, preventing favoritism and errors that could harm companies. It also regulates deadlines, documentation, award criteria, and appeal mechanisms, so that the entire process is clear and legally secure.


