180.155—1-Naphthaleneacetic acid; tolerances for residues.

(a) General. Tolerances are established for the combined residues of the plant growth regulator 1-naphthaleneacetic acid and its conjugates calculated as 1-naphthaleneacetic acid from the application of 1-naphthaleneacetic acid, its ammonium, sodium, or potassium salts, ethyl ester, and acetamide in or on food commodities as follows:
Commodity Parts per million
Cherry, sweet 0.1
Fruit, pome, group 11 0.15
Olive 0.7
Orange 0.1
Pineapple1 0.05
Tangerine 0.1
1 There are no U.S. registrations since 1988.
(b) emergency exemptions. A time-limited tolerance specified in the following table is established for residues of the ethyl ester of 1-naphthaleneacetic acid in or on the following raw agricultural commodity resulting from use of the pesticide pursuant to FIFRA section 18 emergency exemptions. The tolerance will expire and is revoked on the date specified in the following table:
Commodity Parts per million Expiration/revocation
Avocado 0.05 12/31/12
(c) Tolerances with regional registrations. [Reserved]
(d) Indirect or inadvertent residues. [Reserved]

Code of Federal Regulations

[74 FR 46697, Sept. 11, 2009, as amended at 75 FR 37739, June 30, 2010]