British Rail’s ‘catch all’ TOPS code for private owner tank wagons of both bogie and 2-axle types. Railway-owned stock was coded CTA.

TAA
Bogie Tank Wagon, 40-69t GLW

TBA
Bogie Tank Wagon, 70-79t GLW

TCA
Bogie Tank Wagon, 80-89t GLW

TDA
Bogie Tank Wagon, 90-99t GLW
Bogie Pressure Tank Wagon, 90-99t GLW

TEA
Bogie Tank Wagon, over 100t GLW
Bogie Clay Slurry Tank Wagon (102-tonnes)

TIA/B
2-axle/Bogie RIV Tank Wagon

TRA
2-axle Tank Wagon, 20-29t GLW

TSA
2-axle Tank Wagon, 30-39t GLW

TTA/V
2-axle Tank Wagon, 40-49t GLW
2-axle Pressure Tank Wagon, 40-49t GLW
2-axle Chemical Tank Wagon, 40-49t GLW

TUA
2-axle Tank Wagon, over 50t GLW