; and (C) the status of operating protocols with any other railroad carrier whose operation could cause interference with that railroad carrier’s operation. (2) Meeting the requirements A railroad carrier may meet the requirements of paragraph (1) by ensuring that the information has been reported to the Secretary by another railroad carrier that operates through the crossing. (3) Blocked crossing data form The Secretary shall develop and require railroad carriers to use a separate blocked crossing data form when reporting the data required under subparagraph (B) of paragraph (1). (4) Worker participation Each railroad carrier shall check with the relevant railroad workers, including signalmen, conductors, and engineers to ensure the information reported under paragraph (1) is accurate. (5) Auditing The Secretary may periodically audit the reports each railroad carrier submits under paragraph (1) to ensure their accuracy. The Secretary shall have the authority to require any corrective action with respect to the information submitted if it finds the information submitted is inaccurate or false. (6) Selling a crossing A railroad carrier that sells a crossing or any part of a crossing on or after the date of enactment of the Rail Safety Improvement Act of 2008 shall, not later than the date that is 18 months after the date of enactment of such Act or 3 months after the sale, whichever occurs later, or as otherwise specified by the Secretary, report to the Secretary current information, as specified by the Secretary, concerning the change in ownership of the crossing or part of the crossing. (c) Incorporation of data into national highway-Rail crossing inventory (1) Incorporation The Secretary shall on a quarterly basis incorporate the data collected on the blocked crossing data form developed under subsection (b)(3) into the national highway-rail crossing inventory. (2) Data file In carrying out paragraph (1), the Secretary shall ensure that the blocked crossing data form remains its own data file. (3) Searchable