Government Contracts Act (Cap. 118): Primary legislation governing contracts entered into by the Singapore government, establishing basic rules and requirements for government contracts

Public Sector (Governance) Act 2018: Establishes framework for public sector governance, including organizational structure and accountability measures

Government Procurement Act (Cap. 120): Regulates procurement activities by government entities, ensuring transparency and fair competition in public procurement

Competition Act (Cap. 50B): Promotes competition and prevents anti-competitive practices in Singapore, including in public procurement

Public Service (Personnel Management) Regulations: Governs the management of public service personnel, including terms of service and conduct

Public Service Commission Act: Establishes and defines the role of the Public Service Commission in personnel matters

Employment Act (Cap. 91): Main employment law that provides basic terms and working conditions for employees in Singapore

Workplace Safety and Health Act: Ensures safety, health and welfare of persons at work in both private and public sectors

Financial Procedure Act (Cap. 109): Regulates financial procedures and accountability in government spending and contracts

Government Instruction Manuals (IM): Internal guidelines and procedures for government operations and procurement

Public Finance Act: Governs the management and control of public finances in Singapore

Personal Data Protection Act 2012 (PDPA): Governs the collection, use, and disclosure of personal data by organizations, including public agencies

Official Secrets Act (Cap. 213): Protects official information and state secrets, relevant for handling sensitive government information

Ministry of Finance Guidelines on Government Procurement: Detailed guidelines for government procurement procedures and best practices

WTO Government Procurement Agreement: International agreement setting rules for government procurement, to which Singapore is a signatory