The U.S. Department of State (DoS) designed PDTDS22 Security Bollards have been the industry standard, hostile vehicle mitigation solution for more than 30 years when a K12 anti-ram ratings is required. The PDTDS22 state designed security bollards are certified to meet U.S. Department of State (DOS) crash-test standards (SD-STD-02.01). Fixed or Passive PDTDS22 bollards afford your facility permanent protection against vehicular risks, particularly where no depth restrictions are present. The PDTDS22 is strictly manufactured from carbon steel and can be either galvanized or powder coated to the finish of your choosing.