Library of Congress Classification:Class T -- Technology

This article outlines the subclasses of Class T

T -- Technology (General)

TA-- Engineering (General). Civil Engineering

TC-- Hydraulic engineering - Ocean Engineering

TD-- Environmental Technology. Sanitary Engineering

TE-- Highway engineering. Roads and pavements

TF-- Railroad engineering and operation

TG-- Bridge engineering

TH-- Building construction

TJ-- Mechanical engineering and machinery

TK-- Electrical engineering. Electronics. Nuclear engineering

TL-- Motor vehicles. Aeronautics. Astronautics

TN-- Mining engineering. Metallurgy

TP-- Chemical technology

TR-- Photography

TS-- Manufactures

TT-- Handicrafts. Arts and crafts

TX-- Home economics