§174.526. Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.
40 C.F.R. § 174.526
Residues of the Hygromycin B phosphotransferase (APH4) enzyme in all plants are exempt from the requirement of a tolerance when used as a plant-incorporated protectant inert ingredient in cotton.
Notes, amendments, and revision history
Amendments
[72 FR 20435, Apr. 25, 2007]
Authority
Authority: 7 U.S.C. 136-136y; 21 U.S.C. 321(q), 346a and 371.
Source
Source: 66 FR 37814, July 19, 2001, unless otherwise noted.
Amendments
[72 FR 20435, Apr. 25, 2007]