| Subject | English | Thesaurus |
| avia. | aircraft classification number | A number expressing the relative effect of an aircraft on a pavement for a specified standard subgrade category. (The aircraft classification number is calculated with respect to the center of gravity (CG) position which yields the critical loading on the critical gear. Normally the aftmost CG position appropriate to the maximum gross apron (ramp) mass is used to calculate the ACN. In exceptional cases the forwardmost CG position may result in the nose gear loading being more critical.) |
| abbr., scottish | Covert Local Area Sensor System for Intruder Classification | CLASSIC |
| USA | Export Commodity Classification Number | ECCN |
| ed., abbr. | Georgia Commodity Classification Code | GCCC |
| abbr. | Model code of safe practice Part 15: The Area classification code for installations handling flammable fluids | IP15 (EI 15, formerly referred to as IP 15 Alexander Demidov) |
| avia. | pavement classification number | A number expressing the bearing strength of a pavement for unrestricted operations. |
| abbr., bibliogr. | Physics and Astronomy Classification Scheme | PACS (Vosoni) |
| transp., abbr. | Standard Transportation Commodity Classification | STCC |
| transp., abbr. | Transportation Commodity Classification | TCC |