40 CFR §180.449

1. (a)General. Tolerances are established for residues of abamectin, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only avermectin B1 a mixture of avermectins containing greater than or equal to 80% avermectin B1 a (5-O-demethyl avermectin A1) and less than or equal to 20% avermectin B1b (5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl) avermectin A1) and its delta-8,9-isomer in or on the following commodities:
2. (b)Section 18 emergency exemptions. [Reserved]
3. (c)Tolerances with regional registrations. [Reserved]
4. (d)Indirect or inadvertent residues. [Reserved]