Sec. 3. A rule or standard adopted by a board may: (1) make different provisions as required by varying circumstances and conditions for different contaminant sources and for different geographical areas; (2) be made applicable to sources outside Indiana that: (A) are causing; (B) are contributing to; or (C) could cause or contribute to; environmental pollution in Indiana; and (3) make provision for abatement standards and procedures: (A) concerning occurrences, emergencies, or pollution; or (B) on other short term conditions constituting an acute danger to health or to the environment. [Pre-1996 Recodification Citation: 13-7-7-2(a).] As added by P.L.1-1996, SEC.4.