CFR / 
Title 40
 / Part 408
 / 
Sec. 408.230 Applicability; description of the hand-shucked clam
The provisions of this subpart are applicable to discharges resulting from existing hand-shucked clam processing facilities which process more than 1816 kg (4000 lbs) of raw material per day on
any day during a calendar year and all new sources.