    Sentence:, 1: approaches -for.. setting) different  requirements for sources that pose.different-levelsof  hazard \(tiering);-.worst-case-seleases .and other  hazard,..assessment,, issues;--accident - information  reporting;;-public pasticipation; inherently... safer  approaches; ,and, implementation and, integration of  section, 112(9),with-state programs, particularly state  air permitting programs.    Sentence .2:‘The, hazards. range from effecting» the:  individual all the way up tothe community.