Topic
- Radio1
- Radioactive wastes8
- Radon1
- Railroad trains1
- Railroads26
- Reclamation of land--United States31
- Rental housing12
- Reparation (Criminal justice)2
- Research3
- Retirement3
- Right to strike1
- Rivers15
- Roads1
- Rural health clinics2
- Sanctions (International law)1
- Scenic byways1
- Scholarships9
- School children1
- Sewage disposal plants6
- Shelters for the homeless17
