Which of the following act requires employer's standard national numbers to identify them on standard transactions?

SOX (Sarbanes-Oxley Act) focuses on financial reporting accuracy and corporate governance controls for publicly traded companies, not on employer identifiers in healthcare transactions.

HIPAA (Health Insurance Portability and Accountability Act) includes Administrative Simplification provisions that mandate the use of standard national numbers, specifically the Employer Identification Number assigned by the IRS, to identify employers on covered electronic healthcare transactions. This standardization ensures consistent identification across healthcare data exchange.

DMCA (Digital Millennium Copyright Act) governs digital copyright protections and anti-circumvention rules, with no provisions related to employer identification numbers.

PCI-DSS (Payment Card Industry Data Security Standard) establishes security requirements for handling cardholder data and does not address standard national employer identification numbers.