| Acronym | Definition |
|---|
| NRRS➣National Recreation Reservation System (aka National Recreation Reservation Service) |
| NRRS➣NASA Records Retention Schedules |
| NRRS➣Non-Resonant Raman Scattering |
| NRRS➣Near Resonance Rayleigh Scattering |
| NRRS➣National Residential Radon Survey (US EPA) |
| NRRS➣Nash-Reagent-Reactive Substance |