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U.S. Notes (con.) (73) Stereoscopic microscopes, not provided with a means for photographing the image, valued not over $500 per unit (described in statistical reporting number 9011.10.8000) (74) Adapter rings, tubes and extension sleeves, stands and arm assemblies, stages and gliding tables, eyeguards and focusing racks, all the foregoing designed for use with compound optical microscopes (described in statistical reporting number 9011.90.0000) (75) Depth-sounding apparatus, each valued not over $50 (described in statistical reporting number 9014.80.2000) (76) Weather station sets, each consisting of a monitoring display and outdoor weather sensors, having a transmission range of not over 140 m and valued not over $50 per set (described in statistical reporting number 9015.80.8080) (77) Bismuth germanate crystals with set dimensional and surface finish requirements and used as a detection element in Positron Emission Tomography (PET) detectors (described in statistical reporting number 9018.19.9560) (78) Parts and accessories of capnography monitors (described in statistical reporting number 9018.19.9560) (79) Electrosurgical cautery pencils with electrical connectors (described in statistical reporting number 9018.90.6000) (80) Combined positron emission tomography/computed tomography (PET/CT) scanners which utilize multiple PET gantries (frames) on a common base (described in statistical reporting number 9022.12.0000) (81) Radiation therapy systems, each encased by steel-based structural shell with gantry cover comprising three pairs of plastics-based panels (described in statistical reporting number 9022.14.0000) (82) X-ray tables (described in statistical reporting number 9022.90.2500) (83) X-ray tube housings and parts thereof (described in statistical reporting number 9022.90.4000) (84) Multi-leaf collimators of radiotherapy systems based on the use of X-ray (described in statistical reporting number 9022.90.6000) (85) Printed circuit board assemblies, of a kind designed for use in X-ray apparatus (described in statistical reporting number 9022.90.6000) (86) Vertical stands specially designed to support, contain or adjust the movement of X-ray digital detectors, or the X-ray tube and collimator in complete X-ray diagnostic systems (described in statistical reporting number 9022.90.6000) (87) Inoculator sets of plastics, each consisting of a plate with multiple wells, a display tray, and a lid; when assembled, the set measuring 105 mm or more but not exceeding 108 mm in width, 138 mm or more but not exceeding 140 mm in depth, and 6.5 mm or less in thickness (described in statistical reporting number 9027.90.5650) (88) Thermostats designed for air conditioning or heating systems, not designed to connect to the internet, the foregoing designed for wall mounting (described in statistical reporting number 9032.10.0030) (89) Battery balancers designed for regulating voltage across batteries, other than for 6, 12 or 24 volt systems (described in statistical reporting number 9032.89.4000) (ii) The U.S.Trade Representative determined to establish a process by which particular products classified in heading 9903.88.02 and provided for in U.S. notes 20(c) and 20(d) to this subchapter could be excluded from the additional duties imposed by heading 9903.88.02. See 83 Fed. Reg. 40823 (August 16, 2018) and 83 Fed. Reg. 47326 (September 18, 2018). Pursuant to the product exclusion process, the U.S.Trade Representative has determined that, as provided in heading 9903.88.67, the additional duties provided for in heading 9903.88.02 shall not apply to the following particular products, which are provided for in the enumerated statistical reporting numbers: (1) Acrylic acid-2-acrylamido-2-methylpropanesulfonic acid-acrylic ester (AA/AMPS/HPA) terpolymers, presented in dry form (described in statistical reporting number 3906.90.5000) (2) Electrical tape of polyvinyl chloride, in rolls, measuring not more than 2 cm in width, not more than 20.2 m in length, and not more than 0.18 mm in thickness (described in statistical reporting number 3919.10.2020) (3) Transparent tape of plastics with an acrylic emulsion adhesive, in rolls measuring not over 4.8 cm in width, valued not over $.25 per square meter (described in statistical reporting number 3919.10.2030) Harmonized Tariff Schedule of the United States Revision 15 (2026) Annotated for Statistical Reporting Purposes XXII 99 - III - 297