A special grade, when applicable, is supplemental to the grade assigned under § 868.262. Such special grades for brown rice for processing are established and determined as follows:

Parboiled brown rice for processing. Parboiled brown rice for processing shall be rice in which the starch has been gelatinized by soaking, steaming, and drying. Grades U.S. Nos. 1 to 5, inclusive, shall contain not more than 10.0 percent of ungelatinized kernels. Grades U.S. No. 1 and U.S. No. 2 shall contain not more than 0.1 percent, grades U.S. No. 3 and U.S. No. 4 not more than 0.2 percent, and grade U.S. No. 5 not more than 0.5 percent of nonparboiled rice.

The maximum limits for “chalky kernels,” “Heat-damaged kernels,” and “Kernels damaged by heat” shown in § 868.261 are not applicable to the special grade “Parboiled brown rice for processing.”

Smutty brown rice for processing. Smutty brown rice for processing shall be rice which contains more than 3.0 percent of smutty kernels.

Glutinous brown rice for processing. Glutinous brown rice for processing shall be special varieties of rice (Oryza sativa L. glutinosa) which contain more than 50 percent chalky kernels. Grade U.S. No. 1 shall contain not more than 1.0 percent of nonchalky kernels, grade U.S. No. 2 not more than 2.0 percent of nonchalky kernels, grade U.S. No. 3 not more than 4.0 percent of nonchalky kernels, grade U.S. No. 4 not more than 6.0 percent of nonchalky kernels, and grade U.S. No. 5 not more than 10.0 percent of nonchalky kernels.

The maximum limits for “Chalky kernels” in § 868.261 are not applicable to the special grade “Glutinous brown rice for processing.”

Aromatic brown rice for processing. Aromatic brown rice for processing shall be special varieties of rice (Oryza sativa L. scented) that have a distinctive and characteristic aroma; e.g., basmati and jasmine rice.