The following is a list of changes to 40 CFR from July 1, 2013 to July 1, 2014 that affect rules which reference Section R307-101-3: August 28, 2013 -- Vol. 78, No. 167, Pg. 53029-53033 [EPA--HQ--OAR--2012--0393; FRL--9844-3]--The Environmental Protection Agency (EPA) took final action to revise the regulatory definition of volatile organic compounds (VOCs) for purposes of preparing state implementation plans (SIPs) to attain the national ambient air quality standards (NAAQS) for ozone under title I of the Clean Air Act (CAA). This final action added trans 1-chloro-3,3,3- trifluoroprop-1-ene (also known as SolsticeTM1233zd(E)) to the list of compounds excluded from the regulatory definition of VOCs on the basis that this compound makes a negligible contribution to tropospheric ozone formation. March 27, 2014 -- Vol. 79, No. 59, Pg. 7037-17043 [EPA--HQ--OAR--2013--0775; FRL--9906-73--OAR]--The EPA took direct final action to revise the regulatory definition of VOCs under the Clean Air Act (CAA). This direct final action added 2-amino-2- methyl-1-propanol (also known as AMP; CAS number 124-68-5) to the list of compounds excluded from the regulatory definition of VOCs on the basis that this compound makes a negligible contribution to tropospheric ozone formation.