; (B) county; (C) city; (D) street; (E) railroad; (F) Department of Transportation grade crossing identification and inventory numbers; (G) type of crossing; (H) level of crossing protections; (I) whether crossing protections were functioning properly; (J) date of blocked crossing; (K) cause of blocked crossing; (L) duration crossing was blocked for (in minutes); and (M) train number or symbol. (4) Existing data The Secretary may draw on existing national highway-rail crossing inventory data to carry out paragraph (1) and add any relevant data from such inventory to the new blocked crossing data file to effectively carry out this section. (d) Rulemaking authority The Secretary shall prescribe the regulations necessary to implement this section. The Secretary may enforce each provision of the Department of Transportation’s statement of the national highway-rail crossing inventory policy, procedures, and instruction for States and railroads that was in effect on the date of enactment of the Rail Safety Improvement Act of 2008 and not superseded by the Don’t BLock Our Communities Act or a regulation issued under this section. (e) Definitions In this section and in sections 20169 and 20170: (1) Crossing The term crossing means a location within a State, other than a location where one or more railroad tracks cross one or more railroad tracks either at grade or grade-separated, where— (A) a public highway, road, or street, or a private roadway, including associated sidewalks and pathways, crosses one or more railroad tracks either at grade or grade-separated