(a) General. Tolerances are established for residues of the herbicide terbacil, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 to this paragraph (a) is to be determined by measuring only the sum of terbacil (5-chloro-3-(1,1-dimethylethyl)-6-methyl-2,4(1H,3H)-pyrimidinedione) and its metabolites 3-tert-butyl-5-chloro-6-hydroxymethyluracil, 6-chloro-2,3-dihydro-7-hydroxymethyl 3,3-dimethyl-5H-oxazolo(3,2-a) pyrimidin-5-one, and 6-chloro-2,3-dihydro-3,3,7-trimethyl-5H-oxazolo(3,2-a) pyrimidin-5-one, calculated as the stoichiometric equivalent of terbacil, in or on the commodity.
| Commodity
| Parts per million
|
|---|
| Alfalfa, forage | 1
|
| Alfalfa, hay | 2
|
| Apple | 0.3
|
| Asparagus | 0.4
|
| Blueberry | 0.2
|
| Caneberry subgroup 13A | 0.2
|
| Peach | 0.2
|
| Peppermint, fresh leaves | 2
|
| Spearmint, fresh leaves | 2
|
| Strawberry | 0.1
|
| Sugarcane, cane | 0.4
|
| Watermelon | 1
|
(b) Section 18 emergency exemptions. [Reserved]
(c) Tolerances with regional registrations. [Reserved]
(d) Indirect or inadvertent residues. [Reserved]
[71 FR 30818, May 31, 2006, as amended at 91 FR 8104, Feb. 20, 2026]