Uniform Limited Liability Company Act (ULLCA): Federal framework legislation that provides the basic structure for LLC laws, though states may adopt their own versions or variations

State-specific LLC Statutes: Individual state laws governing LLC formation, operation, and dissolution, which vary by jurisdiction and take precedence over ULLCA

Internal Revenue Code - Subchapter K: Federal tax regulations specifically dealing with partnership taxation, crucial for LLC tax treatment and member distributions

State Securities Laws: Regulations governing whether membership interests qualify as securities and related compliance requirements

Federal Securities Laws: SEC regulations that may apply if membership interests are classified as securities or if the LLC reaches certain size thresholds

State Tax Regulations: State-specific tax rules affecting LLC operation, member taxation, and reporting requirements

State Contract Law: General principles of contract law that govern the enforceability and interpretation of the operating agreement

Corporate Governance Requirements: State-specific rules regarding management structure, member voting rights, and fiduciary responsibilities

Fiduciary Duty Laws: Legal obligations of loyalty and care that managing members owe to the LLC and other members

Employment Laws: Federal and state employment regulations that may apply to managing members who are also employees

State Registration Requirements: Filing and registration obligations for amended operating agreements with state authorities

Original Documentation Requirements: Need for original operating agreement, prior amendments, and certificate of formation for proper amendment and restatement