Ministry of National Development (MND):
- Building and Construction Authority (BCA)
- Housing & Development Board (HDB)
- National Parks Board (NParks)
- Urban Redevelopment Authority (URA)
Ministry of Sustainability and the Environment (MSE):
- National Environment Agency (NEA) - Central Building Plan and Pollution Control
- Public Utilities Board (PUB) - Drainage, Sewerage and Water
- Singapore Food Agency (SFA)
Ministry of Home Affairs (MHA)
- Fire Safety and Shelter Department (FSSD)
Ministry of Communications and Information (MCI)
- Infocomm Media Development Authrority (IMDA)
Ministry of Transport (MOT)
- Land Transport Authority (LTA)
- Maritime and Port Authority of Singapore (MPA)
Ministry of Defence (MINDEF)
- Defence Science & Technology Agency (DSTA)
Ministry of Law (MinLaw)
- Singapore Land Authority (SLA)
Ministry of Trade and Industry (MTI)
City Gas Pte Ltd (as Trustee)
Industry Representatives:
- Association of Consulting Engineers, Singapore (ACES)
- Institution of Engineers, Singapore (IES)
- Real Estate Developers Association of Singapore (REDAS)
- Singapore Contractors Association Limited (SCAL)
- Singapore Institute of Architects (SIA)