The record of the State in fulfilling the conditions of the original approval or adjusting to new circumstances, in accordance with requirements of the Act and this chapter, the hearings transcripts, written presentations and comments shall be considered in evaluating the maintenance, administration, or enforcement of a State program for purposes of determining whether to substitute direct Federal enforcement of the State program or to withdraw approval of part or all of the program.

[44 FR 15328, Mar. 13, 1979, as amended at 47 FR 26366, June 17, 1982]