; and (B) make such guidance available to the airport director for each commercial service airport in the United States. (2) Annual updates The guidance issued under this subsection shall be annually updated to incorporate the most recent results and conclusions regarding best practices for the use of Counter-UAS activities at commercial service airports. 4. Counter-UAS activities off commercial service airport property (a) In general Notwithstanding any other provision of law, with respect to a State, the State and local law enforcement agencies in the State may, in a manner consistent with the Fourth Amendment to the Constitution of the United States, carry out Counter-UAS activities for purposes of detecting, identifying, and mitigating the threats posed by an unmanned aircraft or unmanned aircraft system within the jurisdiction of the State or locality. (b) Testing authority (1) In general (A) States and localities Subject to paragraphs (2) and (3), any State or locality of a State may establish testing areas for purposes of researching, testing, providing training on, and evaluating of any equipment, including any electronic equipment, to determine the capability and utility of the equipment to carry out Counter-UAS activities to detect, identify, and mitigate the threats posed by an unmanned aircraft or unmanned aircraft system within the jurisdiction of the State or locality. (B) Private sector entities Subject to paragraphs (2) and (3), any private sector entity may establish testing areas for purposes of researching, testing, providing training on, and evaluating of any equipment, including any electronic equipment, to determine the capability and utility of the equipment to carry out Counter-UAS activities to detect, identify, and mitigate the threats posed by an unmanned aircraft or unmanned aircraft system, so long as such activities are carried out in accordance with applicable State and local laws. (2) FAA cooperation The Federal Aviation Administration shall cooperate with any action by a State, a