The M ratings system used by the Department of Defense (DoD) for vehicle barrier testing is a standardized method for evaluating the effectiveness of vehicle barriers in protecting against high-impact collisions, such as those from vehicles used in terrorist attacks. This system is part of a broader set of guidelines and standards designed to ensure that barriers can withstand significant force and prevent unauthorized vehicle access.
Rating Levels: The M ratings system provides different levels of performance, which are designated by M ratings such as M30, M40, M50 etc. These ratings indicate the barrier’s ability to stop a vehicle:
Ratings are classified by the impact speed of the vehicle.
Common speed ratings include:
After impact, the barrier’s success is also judged by how far the vehicle penetrates past the barrier.
Penetration levels are defined as:
The full rating is a combination of impact speed and penetration level.
Example: M50 P1 means the barrier stopped a 15,000-lb vehicle traveling at 50 mph with penetration of 1 meter or less — a very high-performance result.
The rating is part of the U.S. Department of State SD-STD-02.01, and may also reference similar standards like ASTM F2656, which has replaced it in many contexts but retains similar terminology.
Applies to:
Nasatka Security mobile barriers offer a versatile solution for a variety of security challenges, providing both protection and flexibility where static barriers might be impractical.
The M ratings system is essential for ensuring the reliability and effectiveness of vehicle barriers in real-world security applications. By providing a standardized method for testing and rating barriers, it helps security professionals select appropriate solutions for various threat levels and ensure that their facilities are adequately protected against vehicular threats.
In summary, the M ratings system offers a comprehensive framework for evaluating vehicle barriers, providing clear benchmarks for their performance and ensuring they meet the stringent security requirements necessary to safeguard critical infrastructure.
Each of Nasatka Security’s premier perimeter security solutions has been crash tested and certified by industry standard testing regulations. Nasatka’s products often exceed expectations outlined by federal testing criteria, meaning each solution you invest in is durable, dependable, and will keep your facility secure even as threats evolve. With a 50 year track record of excellence, we’re committed to delivering the industry’s best solutions to you.
Nasatka Security mobile barriers offer a versatile solution for a variety of security challenges, providing both protection and flexibility where static barriers might be impractical.
Whether you’re designing a new perimeter system or upgrading an existing one, Nasatka Security provides end-to-end expertise to safeguard your assets.
