Securities Act of 1933: Federal law governing registration and disclosure requirements for securities offerings, including debentures. Requires full and fair disclosure of securities being offered and prohibits fraudulent practices.

Securities Exchange Act of 1934: Federal law establishing ongoing reporting requirements for issuers of securities, including periodic financial reports and material event disclosures.

Trust Indenture Act of 1939: Federal law governing the qualification of trust indentures under which debt securities, including debentures, are issued when publicly offered.

State Blue Sky Laws: State-specific securities laws governing registration, exemption requirements, and disclosure obligations for securities offerings within each state.

Investment Company Act of 1940: Federal law regulating investment companies and their offerings, which may be applicable depending on the nature of the issuing entity.

State Corporate Laws: Laws of the state where the issuer is incorporated, governing corporate authority, approvals, and other corporate matters related to issuing debentures.

Internal Revenue Code: Federal tax laws affecting debt instruments, including provisions on interest deductibility, original issue discount, and taxation of interest payments.

SEC Regulations: Various SEC rules including Regulation D for private placements and Regulation S for international offerings, governing the issuance and sale of securities.

Exchange Rules: Rules and requirements set by securities exchanges if the debentures will be listed for trading on a public exchange.

Uniform Commercial Code: State-adopted uniform laws, particularly Articles 8 (Investment Securities) and 9 (Secured Transactions), governing securities and secured transactions.