ETOP
| Acronym | Definition |
|---|---|
| ETOP | Extended Range Twin Engine Operation (US FAA) |
| ETOP | Education and Training in Optics and Photonics |
| ETOP | Environmental Technology Opportunities Portal (website; US EPA) |
| ETOP | Environmental Threat and Opportunity (business analysis) |
| ETOP | Employee Training Opportunity Program |
| ETOP | Elective Termination of Pregnancy |
| ETOP | Enhanced Training Opportunities Program (continuing vocational education) |
| ETOP | Engineering Turnover Package |
| ETOP | Expedited Task Order Process |