1B232 Category 1B

Turboexpanders or turboexpander-compressor sets having both of the following characteristics (see List of Items Controlled).

Category 1: Special Materials and Related Equipment, Chemicals, “Microorganisms,” and “Toxins”

Reasons for control

NP: Nuclear nonproliferation
AT: Anti-terrorism

Country chart

Control	Column
AT applies to entire entry	AT 1
NP applies to entire entry	NP 1

List-based license exceptions

Exception	As stated in the entry
GBS	N/A
LVS	N/A

Items

Items: a. Designed for operation with an outlet temperature of 35 K (−238 °C) or less; and
b. Designed for a throughput of hydrogen gas of 1,000 kg/h or greater.

Related controls

(1) Equipment “specially designed” or prepared for the production of heavy water is subject to the export licensing authority of the Nuclear Regulatory Commission (see 10 CFR part 110). (2) See ECCNs 1E001 (“development” and “production”) and 1E201 (“use”) for technology for items controlled by this entry.

Source: eCFR, version 2026-08-01, retrieved 2026-08-20T04:04:59+00:00.