Section 16 MACHINERY AND MECHANICAL APPLIANCES; ELECTRICAL EQUIPMENT; PARTS THERE OF; SOUND RECORDERS AND REPRODUCERS, TELEVISION IMAGE AND SOUND RECORD ERS AND REPRODUCERS, AND PARTS AND ACCESSORIES OF SUCH ARTICLES 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 01 Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reacto 84 01 10 84 01 10 00 Commodity Code Description 84 01 10 00 00 - Nuclear reactors 84 01 20 00 00 - Machinery and apparatus for isotopic separation, and parts thereof 84 01 30 00 00 - Fuel elements (cartridges), non-irradiated 84 01 40 00 00 - Parts of nuclear reactors