The certification alternative to monitoring for Total Toxic Organics (TTO) described in Sec. 469.13 (a), (b), (c), and (d) is applicable to this subpart. (Approved by the Office of Management and Budget under control number 2040-0074) [48 FR 15394, Apr. 8, 1983, as amended at 50 FR 4515, Jan. 31, 1985]