; (B) by striking Free and inserting 0.4% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (76) Used transmissions Heading 9902.16.01 is amended— (A) by amending the article description to read as follows: Used fixed ratio speed changers (provided for in subheading 8483.40.50), other than transmissions for the vehicles of headings 8701, 8702, 8703, 8704 and 8705 ; (B) by striking 1.9% and inserting Free ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (77) Motor assemblies for electric box fans Heading 9902.16.08 is amended— (A) by amending the article description to read as follows: AC electric motors of an output exceeding 37.5 W but not exceeding 74.6 W, single phase, each equipped with a capacitor, rotary speed control mechanism and a motor mounting cooling ring (provided for in subheading 8501.40.20) ; (B) by striking Free and inserting 1.1% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (78) Motor assemblies for oscillating fans Heading 9902.16.09 is amended— (A) by amending the article description to read as follows: AC electric motors of an output exceeding 37.5 W but not exceeding 72 W, single phase, each equipped with a capacitor, a speed control mechanism, and a motor mount of plastics and a self-contained gear mechanism for oscillation (provided for in subheading 8501.40.20) ; (B) by striking 2.0% and inserting 2.3% ; and (C) by striking 12/31/2020 and inserting 12/31/2024 . (79) Electric multi-cookers Heading 9902.16.74 is amended— (A) by amending the article description to read as follows: Electrothermic multifunctional cookers (multicookers) of a kind used for domestic purposes, each incorporating a timer and designed to prepare foods by various methods, including boiling, simmering, baking, frying, roasting or stewing (provided for in subheading 8516.79.00), the foregoing without a thermometer probe ; (B) by striking Free and inserting 2.4%