11 – Device and circuit fabrication
12 – Packaging and system integration
13 – Digital circuits
14 – Mixed signal circuits (analog + digital)
15 – Microwave devices and components
16 – SQUID designs and applications
17 – Superconducting circuits for quantum information processing
18 – Novel electronics

21 – Transition-edge sensors (TES) devices
22 – Nanowire single-photon detectors
23 – Other equilibrium (thermal) detectors (e.g. SNS, penetration-depth)
24 – Other non-equilibrium (non-thermal) detectors (e.g. SIS, MKID)
25 – Instrumentation and readout of superconducting detectors

35 – Superconducting RF
38 – Superconducting magnet technology and system integration

40 – Accelerator magnets: dipoles, quadrupoles, correctors
41 – Accelerator magnets: wigglers, undulators, special magnets
42 – Fusion magnets
43 – Very high field and NMR magnets (solenoids, inserts, hybrid)
44 – Magnets for medical systems
45 – Detector magnets
47 – Magnet stability, magnetization effects, AC losses and protection
48 – Cables and current leads
49 – Magnet design and analysis techniques

50 – General power gear
52 – Motors, Generators, and other rotating machines
54 – Transmission and distribution (mainly cables)
55 – Transformers
56 – Fault-current limiters
57 – Energy storage
58 – Transportation
59 – AC Losses

60 – Niobium-based wires and tapes
62 – MgB2 wires and tapes
64 – Bi-oxide wires and tapes
66 – Coated conductors
68 – Bulk conductors
69 – Other wires and tapes

70 – General materials R&D
71 – Metals and simple compounds
72 – Cuprates
73 – Pnictides
74 – New materials
75 – Thin films and multilayers
77 – Insulation
78 – Other ancillary materials

80 – Critical current and flux pinning
82 – Magnetization and time-dependent losses
84 – Mechanical properties, strain dependence
86 – Critical temperature and critical fields
88 – Other properties