Foreign investment is regulated through various laws and policies at national and regional levels. At the national level, countries typically have investment laws, codes, and bilateral investment treaties that define how and where foreign investors can invest. Regional economic groups also coordinate investment policies among member states. When foreign investors apply to make an investment, host countries screen proposals based on criteria like economic impacts and use of local resources/employment. Approvals may include conditions and are formalized through investment agreements. Restrictions commonly limit foreign ownership percentages in certain sectors and geographic areas.