40 CFR § 180.1263 - Tetrahydrofurfuryl alcohol; exemption from the requirement of a tolerance.
Tetrahydrofurfuryl alcohol (THFA, CAS Reg. No. 97–99–4) is exempt from the requirement of a tolerance in or on all raw agricultural commodities when used in accordance with good agricultural practices as an inert ingredient applied only:
(a) For use as a seed treatment.
(b) For applications prior to planting and at the time of planting.
(c) For use on cotton.
(d) For use in herbicides with one application to wheat, buckwheat, barley, oats, rye, sorghum, triticale, rice, and wild rice prior to the pre-boot stage.
(e) For use in herbicides with two applications to field corn and popcorn up to 36 inches tall (V8 stage).
(f) For use in herbicides with two applications to canola prior to the early bolting stage.
(g) For use in herbicides with two applications to soybeans prior to the bloom growth stage.