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Public Sector Standard Conditions of Contract (PSSCOC) and Collaborative Contracting

Public Sector Standard Conditions of Contract (PSSCOC)

The PSSCOC was developed to enable a common contract form to be used for all public sector construction projects. Using a standardised conditions of contract will allow users to be more familiar, reduce tendering efforts and promote greater efficiency in contract administration.

Collaborative Contracting

Option Module on Collaborative Contracting for use in conjunction with the PSSCOC

To encourage greater collaboration and mutual trust between stakeholders in the built environment sector, we have developed a set of collaborative clauses, as an Option Module to the PSSCOC, together with industry associations and government agencies. The collaborative contract provisions are currently being piloted in selected public sector projects.

Y(SG) clauses for use with NEC4 Engineering and Construction Contract (ECC) 

In addition to the PSSCOC Option Module, BCA, together with NEC1, have developed a set of additional contract clauses (Y(SG) clauses) for use with the NEC4 Engineering and Construction Contract (ECC)2, a collaborative form of contract. The Y(SG) clauses, announced on 29 April 20243, aligns NEC4 contract with Singapore’s laws to facilitate the use in Singapore projects. The NEC4 contract with Y(SG) clauses will be piloted in selected public sector projects.

1 The NEC is a division under Thomas Telford Ltd, which is a wholly owned subsidiary of the Institution of Civil Engineers (ICE), the owner and developer of NEC suite of contracts.

2 NEC4 contract is the latest edition of a suite of collaborative contracts for construction and facilities management projects. The Y clauses are developed to align NEC4 contract with Singapore’s laws when used for the appointment of a contractor for engineering and construction work. For more information on NEC4 contract, please visit https://www.neccontract.com/.

3 Refer to media release on Launch of NEC4 Contract for Construction and Engineering Projects in Singapore at https://www1.bca.gov.sg/about-us/news-and-publications/media-releases/2024/04/29/launch-of-nec4-contract-for-construction-and-engineering-projects-in-singapore.

Benefits of collaborative contracting

  • Aims to reduce project cost, variations and to completion time

  • Encourages teamwork/cooperation among stakeholders

  • Early risk identification and joint problem solving

  • Stimulates information sharing, communication and innovation

  • Avoids disputes and encourages early dispute resolution

 Conditions of Contract

 Downloads


PSSCOC for Construction Works

  1. PSSCOC for Construction Works 2020 (8th edition Jul 2020)

  2. Supplement for PSSCOC for Construction Works 2020 (8th edition Jul 2020)

  3. List of Amendments for PSSCOC for Construction Works 2020 (8th edition Jul 2020)

  4. Option Module E (Collaborative Contracting with SIDP^) - Under Pilot

  5. Option Module E (Collaborative Contracting without SIDP) - Under Pilot

*Items 1-2 to be used together.


PSSCOC for Design and Build

  1. PSSCOC for Design & Build 2020 (7th edition Jul 2020)

  2. Supplement for PSSCOC for Design & Build 2020 (7th edition Jul 2020)

  3. List of Amendments for PSSCOC for Design & Build 2020 (7th edition Jul 2020)

  4. Option Module C (Collaborative Contracting with SIDP) - Under Pilot

  5. Option Module C (Collaborative Contracting without SIDP) - Under Pilot

*Items 1-2 to be used together.


Standard Conditions for Nominated Sub-Contract (NSC)


  1. Standard Conditions of Nominated Sub-Contract 2008 (5th edition December 2008)

  2. Supplement for Nominated Sub-Contract 2008 (5th edition December 2008) (updated w.e.f. 3 July 2017)

  3. List of Clarifications and Editorial Amendments for Nominated Sub-Contract 2008 (1 Dec 2015)

  4. List of Amendments for Nominated Sub-Contract 2008 (5th edition December 2008)

*Items 1-4 to be used together.


NEC4 Engineering and Construction Contract (ECC)

  1. NEC4 Y(SG)1-4 Clauses (for use in conjunction with NEC4 ECC)

^The Singapore Infrastructure Dispute-Management Protocol (SIDP) referenced in the Option Module on Collaborative Contracting can be found in:

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