§ 185.1450 - 2,4-D.

(a) Tolerances are established for residues of the herbicide 2,4-D (2,4-dichlorophenoxyacetic acid) as follows:

(1) 5 ppm in sugarcane molasses, resulting from application of the herbicide to sugarcane fields.

(2) 2 ppm in the milled fractions (except flour) derived from barley, oats, rye, and wheat to be ingested as food or to be converted to food. Such residues may be present therein only as a result of application to the growing crop of the herbicides identified in 40 CFR 180.142.

(3) 0.1 ppm (negligible residue) in potable water. Such residues may be present therein only:

(i) As a result of the application of the dimethylamine salt of 2,4-D to irrigation ditch banks in the Western United States in programs of the Bureau of Reclamation; cooperating water user organizations; the Bureau of Sport Fisheries, U.S. Department of the Interior; Agricultural Research Service, U.S. Department of Agriculture; and the Corps of Engineers, U.S. Department of Defense.

(ii) As a result of the application of the dimethylamine salt of 2,4-D for water hyacinth control in ponds, lakes, reservoirs, marshes, bayous, drainage ditches, canals, rivers and streams that are quiescent or slow moving in programs of the Corps of Engineers or other Federal, State, or local public agencies.

(iii) As a result of application of its dimethylamine salt or is butoxy-ethanol ester for Eurasian watermilfoil control in programs conducted by the Tennessee Valley Authority in dams and reservoirs of the TVA system.

(b) [Reserved]