Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

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Notation Category heading Add Mod ?
T Technology, Engineering, Agriculture, Industrial processes
Class here: associated skills, trades and professions. Use all T* codes for: academic, technical, specialist and general adult titles. DO NOT USE: code ‘T’ itself, but select specific categories from section T*. Use all T* codes with: other subject categories and qualifiers where appropriate, in particular EDUCATIONAL PURPOSE 4* qualifiers for vocational, professional or apprenticeship style education titles
1.4
TQ Environmental science, engineering and technology
Use all TQ* codes for: technical and practical aspects of environment, pollution, waste disposal, etc.
Prefer: PNC for study and research.
See also: RN* The environment and its subcategories
1.1
TQS Sanitary and municipal engineering
TQSR Waste treatment and disposal
Class here: sewage and hazardous waste disposal.
See also: RNH Waste management

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