23 CFR Subpart B
Railroad-Highway Projects
May 21, 2020
§
646.200
Purpose and applicability
§
646.202
[Reserved]
§
646.204
Definitions
§
646.206
Types of projects
§
646.208
Funding
§
646.210
Classification of projects and railroad share of the cost
§
646.212
Federal share
§
646.214
Design
§
646.216
General procedures
§
646.218
Simplified procedure for accelerating grade crossing improvements
§
646.220
Alternate Federal-State procedure
Appendix
to Subpart B of Part 646
Horizontal and Vertical Clearance Provisions for Overpass and Underpass Structures