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IS 1786 rebar standard & BIS quality control orders
What it is
IS 1786 is the Indian Standard for high-strength deformed steel bars, specifying grades Fe 415 to Fe 600, chemistry limits, rib geometry and dimensional tolerance. BIS certification with the ISI mark is mandatory for TMT sold in India
Quality Control Orders extend mandatory certification to imported steel as well, so foreign mills must obtain BIS licences to supply the Indian market
Impact on industries
- Mandatory certification is a genuine entry barrier that raises the floor on structural safety and legitimises brand premiums
- QCOs on imports function as a non-tariff barrier, restricting supply from mills unwilling to undergo BIS licensing
- Enforcement is the weak point - under-diameter bars sold on nominal size remain a common trade practice, so certification does not guarantee compliance
- Compliance cost falls hardest on small secondary mills, while the practices the standard targets persist in the informal channel