§ 180.1013 - Sulfur dioxide from use in fumigants for stored grains; exemption from the requirement of a tolerance.

(a) Residues from the use of sulfur dioxide in liquid grain-fumigant formulations for marker or fire-retardant purposes at levels not exceeding 5 percent by weight of such formulations are exempted from the requirement of a tolerance in or on barley, buckwheat, corn, oats, popcorn, rice, rye, grain sorghum (milo), wheat.

(b) Residues of sulfur dioxide resulting from postharvest fungicidal use are exempted from the requirement of tolerances in or on corn for feed use only.