The Public Safety Wireless Network Program (PSWN) developed the following recommendations for law enforcement and other public safety agencies to enhance communications interoperability in responding to routine and major incidents. First, develop regional and statewide communications systems that can support interoperable communications among multiple agencies. During the Pentagon incident, the Arlington County radio system was able to handle additional users from neighboring jurisdictions. Second, establish mutual-aid agreements and standard operating procedures--not only among local agencies, but also among State and Federal public safety agencies. The proactive planning and coordination efforts of the Washington Metropolitan Council of Governments produced agreements that were instrumental in ensuring an adequate level of interoperable communications at the Pentagon. Third, employ the Incident Command System (ICS) to enhance communications efforts in emergency-response situations. The early establishment of and strict adherence to a formal ICS was critical in supporting successful communications at the Pentagon. Fourth, conduct mass-casualty and disaster-response training drills to identify existing capabilities and potential shortfalls. The value of regular training in the Washington, D.C. region was evident during the response to the Pentagon attack. Fifth, conduct communications asset inventory to identify tools and their capabilities. It became evident at the Pentagon that specific equipment that might have improved communications was not used due to a lack of awareness and prior training. Sixth, adhere to common technology standards in the design, procurement, and implementation of future public safety communications systems. The public safety community at large has participated in the development of the “Project 25” suite of standards for digital radios, as well as other standards. And finally law enforcement is critical in shaping emergency response. The attacks of September 11 demonstrated the importance of law enforcement officers and other public safety personnel as first-responders.