Electronic Transactions Act (ETA): Primary legislation governing electronic transactions in Singapore. Covers legal recognition of electronic signatures, validity of electronic records, and requirements for electronic document execution. Critical for electronic acknowledgement forms.

Evidence Act: Sets out requirements for document admissibility as evidence in Singapore courts, including provisions for proof of document execution and authentication requirements. Essential for ensuring the acknowledgement form's validity in legal proceedings.

Contract Law: Based on Singapore Common Law principles, governs formation of valid contracts, requirements for consideration, and capacity to contract. Fundamental for ensuring the acknowledgement form constitutes a valid legal agreement.

Personal Data Protection Act (PDPA): Regulates collection and handling of personal data, including consent requirements, purpose limitation, and notification obligations. Relevant if the acknowledgement form involves collecting personal information.

Limitation Act: Establishes time limits for enforcement of legal rights and record-keeping requirements. Important for determining how long acknowledgement forms should be retained and enforcement periods.

Companies Act: Governs corporate entities' execution of documents, including requirements for company signatures and authority to sign. Relevant when acknowledgement forms involve corporate parties.

Electronic Transactions (Certification Authority) Regulations: Provides detailed requirements for secure electronic signatures and digital certificates. Important when implementing secure electronic signature systems for acknowledgement forms.