Employment Act (Chapter 91): Primary legislation that sets out basic terms and conditions of employment, including performance management and appraisal requirements. Ensures fair treatment of employees in performance review processes.

Personal Data Protection Act (PDPA): Governs the collection, use, and disclosure of personal data in performance reviews. Ensures confidentiality of employee performance information and proper handling of employee data during the review process.

Tripartite Guidelines on Fair Employment Practices: Guidelines issued by MOM, NTUC, and SNEF that ensure non-discriminatory performance evaluation and promote merit-based assessment in the workplace.

Employment Claims Act: Legislation relevant for dispute resolution in employment matters, ensuring fair review processes and protecting both employer and employee rights in performance evaluations.

Workplace Safety and Health Act: Legislation concerning workplace safety compliance, particularly relevant if performance metrics include safety-related KPIs or for developers working with critical systems.

Fair Consideration Framework: Framework ensuring fair evaluation regardless of nationality and promoting objective performance metrics in the evaluation process.