Skip to main content
Home
Sitemap
FAQs
A-Z Index
Glossary
News-by-email
Vacancies
Contact us
Search:
Search
About ORR
Functions & duties
Functions
Duties
Memoranda of understanding
About the rail industry
Health & safety regulation
Access and market regulation
Network Rail regulation
HS1 regulation
Consultations
News & media
Publications
Rail statistics
Public register
You are here:
Home
About ORR
Functions & duties
Duties
RAB
Regulatory asset base: The Office of Rail Regulation's calculation of the value of Network Rail's assets.
