§ 174.526 - Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.

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§ 174.526 Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.

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.

[72 FR 20435, Apr. 25, 2007]

                    
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§ 174.526 - Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.

§ 174.526 Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.