Employment Act (Chapter 91): Primary legislation governing employment relationships in Singapore, covering notice period requirements, proper termination procedures, and protection of employee rights during resignation

Employment (Termination of Contract of Service) Regulations: Specific regulations detailing procedures for proper termination including format and delivery of notice requirements

Industrial Relations Act (Chapter 136): Legislation governing union matters and collective agreements that may affect resignation procedures for union members

Central Provident Fund Act: Legislation governing mandatory social security savings system, relevant for CPF-related obligations and settlements during resignation

Personal Data Protection Act 2012 (PDPA): Law governing the collection, use, and disclosure of personal data, ensuring proper handling of personal information in authorization letters

Singapore Companies Act: Corporate legislation relevant when the resigning party is a director or key officer, including corporate governance requirements

Authorization Letter Key Components: Essential elements including clear identification of parties, scope of authorization, duration, notice period compliance, handover requirements, confidentiality obligations, company property return, and final settlement terms