Steam lines with conditions listed below fall in the scope of IBR.

1. Lines having design pressure (max. working pressure) above 3.5 Kg/cm2 (g).
2. Line sizes above 10″ inside diameter having design pressure 1.0 Kg/cm2(g) &above.
3. Lines with design pressure less than 1.0 Kg/cm2(g) are excluded.
4. Users of steam like steam tracing lines, jacket of the steam jacketed lines, steam heating coil within the equipment are excluded from IBR scope.
5. Boiler feed water lines to steam generator, condensate lines to steam generator and flash drum shall be under purview of IBR.

IBR requirements (in brief)

1. All materials used on lines falling under IBR must be accompanied with IBR Inspection Certificate in original.
2. Alternatively, photocopy of the original certificate duly countersigned and attested by local boiler inspector is acceptable.
3. Leading inspection authority viz. Lloyds, EIL etc are authorised
   inspection authorities for IBR outside India, whereas, for Indian supply only IBR is the inspection authority.
4. Drawings like ‘General Arrangement Drawings’ and Isometrics of lines falling under IBR must also be approved by IBR authority of State in which the system is being installed.
5. All welders used for fabrication of IBR system must possess IBR welding qualification certificate.
6. IBR system shall be designed to comply with IBR regulations as well as ASME B31.3.
7. Design calculations for the same must be approved by IBR authority.
8. IBR approval is obtained with requisite fees payable to Indian Boiler Board of the State concerned.
9. Steam generators (boilers/heat exchangers) shall require exclusive IBR approval alongwith it’s integral piping upto the final isolation valve.
10. The discretion of IBR authority of state is final and binding for the above cases.