Periodical Operating Notices

Periodical Operating Notices were published 4-weekly and comprised of updates to the Sectional Appendix as well as updates to other official documents. They were numbered by the week in which they were published, e.g. ND 40D was published in week 40. See also the list of Sectional Appendices in the library.

British Railways Eastern Region

Northern Area – North

Northern Area – South and Southern Area

Applicable to London Midland Region