| Tags | Description |
| Log n | Refers to the amount of zeroes or the money available in Grant. Eg.: Log5 means the grant was awarded atleast $100,000 |
| small, large, medium | Refers to the size of the grant small: <$10,000 medium: >$10,000 - <$100,000 large: >$100,000 |
| bio, cse, ehr, eng, geo, mps, o/d, opp, sbe etc. | Refers to the name of the NSF Directorate Eg. bio refers to the Directorate of Biological Sciences. Fore more info, please refer to http://www.nsf.gov/staff/orglist.jsp |
| cmmi, cns, dbi, dmr etc. | Refers to the name of the divisions which fal under a directorate. For Eg. dbi refers to the Division of Biological Infrastructure which falls under the bio directorate |
| 2008, 2009 etc. | Refers to the year in which the NSF grant was awarded |