| Acronym | Meaning |
| NLC | Noctilucent Cloud |
| KVP | Kohn Variational Principle |
| CTARC | Chemical Testing And Assessment Research Commission |
| EOLM | Electro-optical Light Modulation |
| HMTA | Hazardous Material Transportation Act |
| CH-CI | Core Hole Configuration Interaction |
| RTU | Remote Terminal Unit |
| PWRI | Public Works Research Institute (Japan) |
| ETAD | Ecological And Toxicological Association Of Dye And Organic Pigment Manufacturers |
| HACS | Hazard Assessment Computer System |