This document provides an overview of the legal and regulatory framework for foreign investment in post-sanctions Iran. It discusses the Iranian legal system, commercial and criminal codes, and opportunities and challenges for public-private partnerships, joint ventures, intellectual property, and other forms of investment. The document also examines the Foreign Investment Promotion and Protection Act, which protects foreign investors' rights and covers non-commercial risks. Potential investors are advised to familiarize themselves with relevant Iranian laws and regulations and pursue partnerships with reputable local firms. Over time, Iran's banking, finance and contracting systems will continue developing to better facilitate foreign investment.