Section 180.621 - Dithianon; tolerances for residues(a)General. Tolerances are established for residues of dithianon, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only dithianon, 5, 10-dihydro-5,10-dioxonaphtho(2,3-b)-1,4-dithiin-2,3-dicarbonitrile. | Commodity | Parts per
million |
| Fruit, pome, group 111 | 5 |
| Grape2 | 3 |
| Hop, dried cones1 | 100 |
1No U.S. registration as of September 5, 2006.
2No U.S. registration as of January 29, 2010.
(b)Section 18 emergency exemptions. [Reserved](c)Tolerances with regional registrations. [Reserved](d)Indirect or inadvertent residues. [Reserved]