; or (B) other monitoring technology with the ability to provide real-time spatial and temporal data to understand the type and amount of emissions; or (2) provide an explanation of why application of Method TO–15 or the technologies described in paragraph (1) is not necessary— (A) to assure compliance with the emission standards established under the regulations promulgated pursuant to subsections (d) and (f) of section 112 of the Clean Air Act ( 42 U.S.C. 7412 ), as applicable