| 100% | MADD | 4 | Org. that partners with Lyft and Uber to promote safe ridesharing |
| 39% | NIH | 3 | Org. that partnered with Moderna to create a COVID-19 vaccine |
| 37% | NIH | 3 | Govt. org. that partnered with Moderna to develop a Covid-19 vaccine |
| 37% | CAB | 3 | Vehicle that might compete with Lyft and Uber for customers |
| 34% | ETS | 3 | Org. that partners with the College Board |
| 33% | CAB | 3 | Vehicle that's an alternative to Lyft and Uber |
| 32% | UBER | 4 | App that competes with Lyft and Sidecar |
| 31% | UBER | 4 | Ridesharing app that competes with Lyft |
| 31% | UBER | 4 | Rideshare service that competes with Lyft |
| 30% | TSA | 3 | Org. that has to deal with a lot of baggage |
| 30% | BBB | 3 | Org. that instructs its members to "Build Trust" and "Advertise Honestly" |
| 29% | NEH | 3 | Grant-making org. that promotes the arts and scholarship |
| 29% | OTHER | 5 | Partner for this and that, with "the" |
| 29% | CAB | 3 | Vehicle that's an alternative to Uber or Lyft |
| 28% | NFL | 3 | Org. that's home to the ends of 20-, 32-, 41- and 52-Across |
| 28% | APPS | 4 | Lyft and Uber |
| 28% | PET | 3 | Animal that goes to the vet and rhymes with "vet" |
| 28% | COPPER | 6 | ___-bottomed, "metallic" phrase that refers to a solid and safe deal |
| 28% | BIRCH | 5 | Tree with bark that's used to build canoes and wigwams |
| 28% | GRASS | 5 | Word that refers to oft-mowed vegetation and ends with "ss" |
| 27% | OTHER | 5 | Alternative to this and that, with "the" |
| 27% | ANS | 3 | Org. that promotes the study of onomastics and whose annual conference is in SF next January |
| 27% | TEAK | 4 | Wood that is used to build ships and furniture (rhymes with "weak) |
| 27% | USPS | 4 | Org. that now lets you print and pay for your own labels with tracking right from home |
| 27% | PAC | 3 | Org. that receives contributions from members and donates them to official campaign groups or toward ballot initiatives |
| 27% | IPOS | 4 | Lyft and Uber milestones of '19 |
| 27% | AABB | 4 | Bethesda org. that concentrates on "making transfusion medicine and biotherapies safe, available, and effective" (abbr.) |
| 27% | ATF | 3 | DOJ org. that was involved with Operation Fast and Furious and Operation Wide Receiver (abbr.) |
| 26% | ABA | 3 | Org. that was the 1967-76 home to the Nets, Nuggets, Pacers, and Spurs |
| 26% | PRAYER | 6 | Plea to a deity ... and with 47a, a wish that's not expressed verbally |