# The Coal Mines (Cardox and Hydrox) Regulations 1956, Regulation 28


Each person appointed to fire shells shall keep a record of all shells fired by him on each shift of his in a book provided by the owner of the mine for that purpose.

---
Source: https://www.legislation.gov.uk/uksi/1956/1942/regulation/28 (the official version)
Page: https://openlegislation.uk/coal-mines-cardox-and-hydrox-regulations-1956/regulation-28
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.