The Smoke and Carbon Monoxide Alarm (England) Regulations 2015
https://www.gov.uk/government/publications/smoke-and-carbon-monoxide-alarms-explanatory-booklet-for-landlords
Coming into effect from the 1st of October I wanted to run through the main effects of the legislation. A Q&A guide to the regulations can be found at this link.
If you have any questions about the regulations feel free to ask me.