Section 52.873 - Approval status(a) Kansas rule K.A.R. 28-19-719 was rescinded on April 12, 2021.(c) The Administrator approves Rule K.A.R. 28-19-31 as identified at § 52.870(c)(29) , with the understanding that any alternative compliance plans issued under this rule must be approved by EPA as individual SIP revisions.37 FR 10867, May 31, 1972, as amended at 46 FR 20170, Apr. 3, 1981; 46 FR 61118, Dec. 15, 1981; 57 FR 27939, June 23, 1992; 59 FR 52427, Oct. 18, 1994; 61 FR 16061, Apr. 11, 1996; 86 FR 14002 , Mar. 12, 2021