Section 240.122  Diesel Engine Emission Standards for Locomotives

a)         No person shall cause or allow the emission of smoke from any diesel locomotive in the State of Illinois to exceed thirty percent (30%) opacity.

b)         Subsection (a) shall not apply to:

1)         Smoke resulting from starting a cold locomotive:  for a period of time not to exceed 30 minutes.

2)         Smoke emitted while accelerating under load from a throttle setting other than idle to a higher throttle setting: for a period of time not to exceed 40 seconds.

3)         Smoke emitted upon locomotive loading following idle:  for a period of time not to exceed 2 minutes.

4)         Smoke emitted during locomotive testing, maintenance, adjustment, rebuilding, repairing or breaking in:  for a period of time not to exceed 3 consecutive minutes and an aggregate of 10 minutes in any 60 minute period.

5)         Smoke emitted by a locomotive which because of its age or design makes replacement or retrofit parts necessary to achieve smoke reduction unavailable.  These locomotives shall be retired at the earliest possible time.

(Source:  Amended in R90-20 at 16 Ill. Reg. 6184, effective April 7, 1992)