Trinidad and Tobago Industrial Classification (ISIC Rev 4 based)International Standard Industrial Classification of All Economic Activities, Rev.4
ISIC Rev 4 (Trinidad and Tobago) 421 to ISIC Rev 4
Crosswalk mapping from ISIC Rev 4 (Trinidad and Tobago) 421 "Construction of roads and railways" to ISIC Rev 4. 1 official equivalence.
ISIC Rev 4 (Trinidad and Tobago) 421 in ISIC Rev 4
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About ISIC Rev 4 (Trinidad and Tobago) 421
421 Construction of roads and railwaysThis class covers the construction of transport infrastructure such as roads, highways, streets, bridges, tunnels and railway lines, including associated earthworks, paving, track laying and related civil-engineering services.