40 CFR 180.155 - 1-Naphthaleneacetic acid; tolerances for residues.

Regulations last checked for updates: Dec 17, 2025

Title 40 - Protection of Environment last revised: Nov 17, 2028

View all text of Subpart C [§ 180.101 - § 180.730]

§ 180.155 - 1-Naphthaleneacetic acid; tolerances for residues.

(a) General. Tolerances are established for the residues of 1-naphthaleneacetic acid, including its metabolites and degradates in or on the commodities in the following table. Compliance with the tolerance levels specified is to be determined by measuring only 1-naphthaleneacetic acid and its conjugates, calculated as the Stoichiometric equivalent of 1-naphthaleneacetic acid, in or on the commodity.

Commodity	Parts per million
Avocado	0.05
Cherry, sweet	0.1
Fruit, pome, group 11-10	0.15
Mango	0.05
Olive	0.7
Orange	0.1
Pineapple ¹	0.05
Pomegranate	0.05
Potato	0.01
Rambutan	2.0
Sapote, mamey	0.05
Tangerine	0.1

¹ There are no U.S. registrations since 1988.

(b) Section 18 emergency exemptions. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[78 FR 30218, May 22, 2013, as amended at 80 FR 77260, Dec. 14, 2015]

authority: 21 U.S.C. 321(q), 346a and 371

source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.

cite as: 40 CFR 180.155