(a) General. Tolerances are established for combined residues of diflufenzopyr, 2-(1-[([3,5-difluorophenylamino] carbonyl)hydrazono]ethyl)-3- pyridinecarboxylic acid, and its metabolites convertible to 8- methylpyrido[2,3-d]pyridazin-5(6H)-one, expressed as diflufenzopyr, in or on the following raw agricultural commodities:

CommodityParts per million
Corn, field, forage0.05
Corn, field, grain0.05
Corn, field, stover0.05
Corn, pop, grain0.05
Corn, pop, stover0.05
Corn, sweet, forage0.05
Corn, sweet, kernel plus cob with husks removed0.05
Corn, sweet, stover0.05
Grass, forage22.0
Grass, hay7.0

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[64 FR 4308, Jan. 28, 1999, as amended at 67 FR 55338, Aug. 29, 2002; 76 FR 34886, June 15, 2011]