1100 Division of Air Quality

1143 Heavy Duty Diesel Engine Standards (Repealed)

This regulation was repealed, effective November 11, 2013.

5 DE Reg. 1302 (12/01/01)

8 DE Reg. 1162 12/01/05)

12 DE Reg. 347 (09/01/08)

17 DE Reg. 540 (11/01/13)