If you are updating your practice based on these amendments, check the following:
Subject: Plain and Reinforced Concrete - Code of Practice Bureau of Indian Standards (BIS)
A: Yes. IS 456:2000 with Amendment No. 4 (Reaffirmed 2021) is the current valid code. The draft of IS 456:2024 is under review but not yet enforced.
A: No. Earthquake design is covered by IS 13920 (ductile detailing). However, Amd. 4 refers to IS 13920 for seismic-related reinforcement limits.
The IS 456 latest amendment pdf is not just a file – it’s a professional obligation. As of today, Amendment No. 4 (Reaffirmed 2021) represents the cutting edge of Indian concrete code practice. Whether you are designing a flyover in Mumbai or a bungalow in Bengaluru, using this amended version ensures safety, legality, and engineering excellence.
Action steps for you:
Stay updated. Stay compliant. Build safe.
Note: This article is for informational purposes. Always refer to the original Bureau of Indian Standards document for legal and technical applications.
As of April 2026, Amendment No. 6 (June 2024) is the latest officially issued amendment to IS 456:2000
, the Indian Standard Code of Practice for Plain and Reinforced Concrete Fifth Revision (IS 456:202X)
is currently in the draft and public comment phase, the 2000 version (reaffirmed in 2021) remains the active legally binding standard. Latest Amendment Breakdown: Amendment No. 6 (June 2024) is 456 latest amendment pdf
This update introduced several technical changes to align with modern materials and sustainability goals: New Cement Types : Inclusion of Composite Cement (conforming to IS 16415) and Portland Calcined Clay Limestone Cement (conforming to IS 18189) for use in reinforced concrete. Admixture Guidelines
: Updates on the combined use of fly ash and ground granulated blast furnace slag (GGBS) with OPC, including specific minimum cement content and maximum ash/slag percentages. Water-Cement Ratio
: Adjustments to maximum free water-cement ratios when using new cement types like Portland calcined clay limestone cement. Strength Testing
: Revisions to concrete strength testing procedures and guidelines for bond stress values in reinforcing bars. Future Outlook: IS 456 Fifth Revision
A comprehensive "Fifth Revision" is currently being finalized by the Bureau of Indian Standards (BIS) . Key features expected in this major update include: Performance-Based Design If you are updating your practice based on
: Shifting focus toward durability, robustness, and restorability rather than just safety. Expanded Scope
: Explicit inclusion of concrete portions in steel-concrete composite structures. New Technologies
: Provisions for Self-Compacting Concrete (SCC) and Steel Fiber Reinforced Concrete (SFRC). Note on Verification:
You can verify the status of current standards or download amendments directly from the BIS Standards Portal draft changes in the upcoming 5th revision, or do you need help summarizing specific clauses from Amendment 6?
IS 456 Amendment 6 Overview | PDF | Concrete | Cement - Scribd Subject: Plain and Reinforced Concrete - Code of