; (2) operations conducted by the Department of Defense, including establishing areas of airspace for such operations under section 40103(b)(3) of title 49, United States Code; and (3) operations conducted by a governmental entity described in the definition of public aircraft in section 40102(a) of such title for national defense purposes or in response to a terrorist event. (d) Procedures To protect public safety In authorizing operations pursuant to subsections (b) and (c), the Secretary shall implement procedures to ensure that reasonable precautions are taken to protect public safety. (e) Definitions In this section, the following definitions apply: (1) Person The term person , in addition to its meaning under section 1 of title 1, United States Code, includes a governmental authority and a trustee, receiver, assignee, and other similar representative. (2) Weapon The term weapon includes lethal and nonlethal weapons. . (b) Clerical amendment The table of contents contained in section 1(b) of such Act is amended by inserting after the item relating to section 336 the following: Sec. 337. Prohibition to prevent use of unmanned aircraft systems as weapons while operating in national airspace system. .