Securities Act of 1933: Primary federal law governing the initial offering and sale of securities, requiring registration unless an exemption applies

Securities Exchange Act of 1934: Federal law regulating secondary market trading of securities and establishing the SEC

Regulation D: SEC rules providing exemptions from securities registration requirements, particularly Rules 506(b) and 506(c) for private placements

JOBS Act of 2012: Legislation easing securities regulations for smaller companies, including provisions for crowdfunding and general solicitation

Blue Sky Laws: State-specific securities laws governing the offering and sale of securities within each state's jurisdiction

Delaware General Corporation Law: Primary corporate law framework if the startup is incorporated in Delaware, governing corporate structure and shareholder rights

Internal Revenue Code Section 1202: Tax provisions regarding Qualified Small Business Stock (QSBS) offering potential tax benefits for eligible startup investments

CFIUS Regulations: Requirements for review of foreign investments in U.S. companies that may have national security implications

FIRRMA: Foreign Investment Risk Review Modernization Act expanding CFIUS jurisdiction over foreign investments in U.S. technology companies

State Contract Laws: State-specific laws governing contract formation, enforcement, and interpretation

Investment Company Act of 1940: Federal law regulating investment companies and providing exemptions for venture capital and private equity investments

Regulation Crowdfunding: SEC rules implementing JOBS Act provisions for equity crowdfunding, setting requirements for such offerings