Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
§ 174.537 - HPPD-4 protein; exemption from the requirement of a tolerance.

Residues of the HPPD-4 protein, which is a modified protein derived from the 4-hydroxyphenylpyruvate dioxygenase enzyme of Pseudomonas fluorescens, in or on all food commodities are exempt from the requirement of a tolerance, when the HPPD-4 protein is used as a plant-incorporated protectant inert ingredient.

[82 FR 57140, Dec. 4, 2017]
authority: 7 U.S.C. 136-136y; 21 U.S.C. 321(q), 346a and 371
source: 66 FR 37814, July 19, 2001, unless otherwise noted.
cite as: 40 CFR 174.537