(a) General. Tolerances are established for the residues of the plant regulator chlormequat chloride, including its metabolites and degradates in or on food commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only chlormequat chloride [(2-chloroethyl) trimethylammonium chloride in or on the following commodities:
| Commodity
| Parts per million
|
|---|
| Barley, bran | 20
|
| Barley, grain | 8
|
| Barley, hay | 150
|
| Barley, straw | 60
|
| Cattle, meat byproducts | 1
|
| Cattle, meat | 0.2
|
| Egg | 0.1
|
| Goat, meat byproducts | 1
|
| Goat, meat | 0.2
|
| Hog, meat byproducts
1 | 0.5
|
| Hog, meat
1 | 0.2
|
| Horse, meat byproducts | 1
|
| Horse, meat | 0.2
|
| Milk | 0.5
|
| Oat, grain | 40
|
| Oat, forage | 15
|
| Oat, hay | 150
|
| Oat, straw | 50
|
| Poultry, meat byproducts | 0.1
|
| Poultry, meat | 0.05
|
| Sheep, meat byproducts | 1
|
| Sheep, meat | 0.2
|
| Wheat, bran | 15
|
| Wheat, germ | 20
|
| Wheat, grain | 5
|
| Wheat, forage | 30
|
| Wheat, hay | 150
|
| Wheat, straw | 70
|
(b) Section 18 emergency exemptions. [Reserved]
(c) Tolerances with regional registrations. [Reserved]
(d) Indirect or inadvertent residues. [Reserved]
[83 FR 17929, Apr. 25, 2018, as amended at 85 FR 31386, May 26, 2020, as amended at 91 FR 39493, June 30, 2026]