ECE Regulation No. 73 sets forth the uniform provisions concerning the approval of vehicles with regard to their lateral protection devices (LPDs). These devices are designed to prevent pedestrians, cyclists, and other road users from being dragged under the wheels of a vehicle, particularly large commercial vehicles, in the event of a side collision. This regulation is crucial for enhancing road safety and reducing the risk of severe injuries or fatalities in such incidents.

The regulation specifies the technical standards for the design, construction, and performance of lateral protection devices. These standards ensure that LPDs are robust, durable, and capable of providing effective protection. The regulation mandates that these devices must be tested under various conditions to ensure they meet the required safety performance criteria.

Testing procedures are rigorously defined to ensure compliance with the regulation. These tests include assessments of the device's strength, durability, and effectiveness in preventing under-run incidents. Manufacturers must conduct these tests to demonstrate that their LPDs meet the required standards. The regulation also includes provisions for the proper installation and maintenance of these devices to ensure their continued effectiveness throughout the vehicle’s lifetime.

The TAT Lab in Iran is authorized to perform testing and certification for compliance with ECE Regulation No. 73. This includes conducting all necessary tests to ensure that lateral protection devices meet the specified standards for safety, performance, and durability. TAT Lab utilizes advanced testing equipment and methodologies to perform these tests accurately and efficiently. By performing these tests, TAT Lab helps enhance road safety in Iran by ensuring that commercial vehicles are equipped with effective lateral protection devices, thereby reducing the risk of severe injuries or fatalities in side collision incidents.