Section 52.2679 - Control strategy and regulations: Sulfur dioxide(a) Approvals of the following rules are limited to specific sources, since a control strategy demonstration has not been submitted showing that any increased emissions would not interfere with the attainment or maintenance of the NAAQS. (1) Rule 13.1, submitted on October 12, 1979, for all applicable sources except the Tanguisson Power Plant.(2) Rule 13.2, submitted on January 25, 1972, for the Tanguisson Power Plant.(b) The following rules are disapproved because they are inconsistent with section 123(a)(2) of the Clean Air Act which requires continuous control strategies.(1) Rule 13.2, submitted on October 12, 1979.