Road Traffic Act (Chapter 276): Primary legislation governing vehicle ownership, usage, requirements for vehicle operation and transfer of control, and legal responsibilities of vehicle owners and authorized drivers in Singapore

Motor Vehicles (Third-Party Risks and Compensation) Act: Legislation covering mandatory insurance requirements and liability considerations when authorizing others to drive vehicles

Personal Data Protection Act 2012 (PDPA): Law governing the handling and protection of personal information in documents, ensuring proper consent for sharing personal data

Electronic Transactions Act: Legislation governing the validity of electronic signatures and documents, relevant if the authorization is to be executed in electronic form

LTA Regulations: Singapore Land Transport Authority guidelines covering vehicle ownership, usage, and requirements for vehicle operation authorization

Insurance Policy Requirements: Specific requirements from the vehicle's insurance policy regarding authorized drivers and coverage conditions

Power of Attorney Considerations: Legal implications and requirements if the authorization acts as a limited power of attorney for vehicle-related matters

Authorization Duration: Specific considerations regarding the temporal scope of the authorization, including start and end dates

Usage Limitations: Specific conditions and restrictions on vehicle usage that need to be clearly stated in the authorization

Liability Clauses: Legal provisions defining responsibility and liability distribution between the vehicle owner and authorized driver