The short version: the E-Sign Act is the federal law that makes electronic signatures legally valid across the United States, and UETA is the state-level model law most states adopted to say the same thing locally. They overlap on purpose, and a compliant signing platform is built to satisfy both at once.
The Electronic Signatures in Global and National Commerce Act (2000) is the United States federal law establishing that electronic signatures and records cannot be denied legal effect solely because they are electronic. It applies to transactions in interstate and foreign commerce.
The Uniform Electronic Transactions Act (1999) is a model state law with the same core principle: electronic signatures and records are legally equivalent to ink and paper. Individual states adopt and sometimes modify it, which is why coverage is described state by state.
Generally both frameworks point the same direction, and a compliant eSignature platform is built to satisfy them together: consent to do business electronically, clear intent to sign, association of the signature with the record, and records the signer can retain.
How Verdocs satisfies both, along with SOC 2, HIPAA, and eIDAS, lives on the compliance page, including the tamper-evident audit trail every envelope carries.
General information, not legal advice; consult counsel for your specific documents and jurisdictions.