IRS is proud to participate in the move towards increased “Atmanirbhar” (Self Reliance) in the Defence Industry, announced by the Government of India. IRS provides a full range of Classification and Certification services to Shipyards constructing ships and craft for the Indian Navy, Indian Coast Guard and other Defence and Paramilitary Services, and to the Industries supplying materials, machinery and equipment for these vessels. Several of these vessels are also maintained in IR Class after delivery.

More than 300 vessels and numerous boats have already been built under IRS Classification for the Indian Navy, Indian Coast Guard, Border Security Force, National Disaster Relief Force and other Government agencies.

IRS is also certifying machinery and equipment. sourced by shipyards from leading overseas manufacturers, ensuring that the products meet the specific requirements of the shipyards and shipowners.

Advanced Technical Studies and Analyses are also being carried out by qualified and experienced personnel for verifying specific design requirements, including strength, vibration, stability and for minimising acoustic, magnetic, infrared and radar signatures.

Customised Rules-Guidelines have been developed for:

  • Naval Combatant and Non-Combatant Vessels
  • High Speed Vessels
  • Coast Guard Vessels
  • Hovercrafts
  • Rigid Inflatable Boat and Auxiliary vessels
  • Remote Operated Vessels and Autonomous Surface Vessels
  • Solar & Battery Powered Vessels

Vessels under Class:

Anti-Submarine Craft

Diving Support Vessels

Large Survey vessels

Fast Attack Crafts

Offshore Patrol Vessels

Inshore Fast Patrol Vessels

Research Vessels

High Power Tugs

Large Floating Dock

Auxiliary Crafts, Supply Vessels, Inspection Barges

Dock Gates and Caisson Gates

Training Simulators


Equipment under Certification:

 Main and Auxiliary Propulsion   Engines

 High Speed Gear Box

 IPMS, IBS, APMS and DP System

 AC and Ref Plants

RO Plants


HVAC System

Ship Cranes

Davits and Derricks

 Steering System

Fin Stabilisers

Capstan and Winches

Air Diving and Saturation Diving  Equipment

Deck Fittings

Watertight and Fire Class Doors and Hatches

Helicopter Landing Grid

Hangar and Hangar Doors

Helicopter Traversing System

Fire, Bilge, Salvage, AVCAT Pumps

Ship’s Valves


Advanced Technical Studies & Analysis:

Hull Strength Assessment

Residual Structural Strength Analysis

Ultimate Structural Strength Analysis

Intact and Damage Stability Analysis

Fatigue Life Analysis

Underwater Shock Analysis

Air borne and Structure Borne Noise prediction

Vibration Prediction and Measurement

Underwater Magnetic Signature Prediction

Resistance Prediction

Wake Prediction

Ships Motion Prediction

Seakeeping Analysis

Maneuvering Analysis

Flow Simulation

Aerodynamic Simulations


Worldwide presence of IRS allows us to provide prompt and efficient service towards material and product certification for a wide range of Defence requirements.